Bump the github-actions group with 2 updates (#952)

Bumps the github-actions group with 2 updates: [actions/download-artifact](https://github.com/actions/download-artifact) and [actions/upload-artifact](https://github.com/actions/upload-artifact).

Updates `actions/download-artifact` from 4.1.8 to 4.1.9
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/actions/download-artifact/releases">actions/download-artifact's releases</a>.</em></p>
<blockquote>
<h2>v4.1.9</h2>
<h2>What's Changed</h2>
<ul>
<li>Add workflow file for publishing releases to immutable action package by <a href="https://github.com/Jcambass"><code>@​Jcambass</code></a> in <a href="https://redirect.github.com/actions/download-artifact/pull/354">actions/download-artifact#354</a></li>
<li>docs: small migration fix by <a href="https://github.com/froblesmartin"><code>@​froblesmartin</code></a> in <a href="https://redirect.github.com/actions/download-artifact/pull/370">actions/download-artifact#370</a></li>
<li>Update MIGRATION.md by <a href="https://github.com/andyfeller"><code>@​andyfeller</code></a> in <a href="https://redirect.github.com/actions/download-artifact/pull/372">actions/download-artifact#372</a></li>
<li>Update artifact package to 2.2.2 by <a href="https://github.com/yacaovsnc"><code>@​yacaovsnc</code></a> in <a href="https://redirect.github.com/actions/download-artifact/pull/380">actions/download-artifact#380</a></li>
</ul>
<h2>New Contributors</h2>
<ul>
<li><a href="https://github.com/Jcambass"><code>@​Jcambass</code></a> made their first contribution in <a href="https://redirect.github.com/actions/download-artifact/pull/354">actions/download-artifact#354</a></li>
<li><a href="https://github.com/froblesmartin"><code>@​froblesmartin</code></a> made their first contribution in <a href="https://redirect.github.com/actions/download-artifact/pull/370">actions/download-artifact#370</a></li>
<li><a href="https://github.com/andyfeller"><code>@​andyfeller</code></a> made their first contribution in <a href="https://redirect.github.com/actions/download-artifact/pull/372">actions/download-artifact#372</a></li>
<li><a href="https://github.com/yacaovsnc"><code>@​yacaovsnc</code></a> made their first contribution in <a href="https://redirect.github.com/actions/download-artifact/pull/380">actions/download-artifact#380</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/download-artifact/compare/v4...v4.1.9">https://github.com/actions/download-artifact/compare/v4...v4.1.9</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/actions/download-artifact/commit/cc203385981b70ca67e1cc392babf9cc229d5806"><code>cc20338</code></a> Merge pull request <a href="https://redirect.github.com/actions/download-artifact/issues/380">#380</a> from actions/yacaovsnc/release_4_1_9</li>
<li><a href="https://github.com/actions/download-artifact/commit/1fc0fee191f40422f502da571c0f01ff460afe53"><code>1fc0fee</code></a> Update artifact package to 2.2.2</li>
<li><a href="https://github.com/actions/download-artifact/commit/7fba95161a0924506ed1ae69cdbae8371ee00b3f"><code>7fba951</code></a> Merge pull request <a href="https://redirect.github.com/actions/download-artifact/issues/372">#372</a> from andyfeller/patch-1</li>
<li><a href="https://github.com/actions/download-artifact/commit/f9ceb7763ba1fdfd81b2e2f93aa1f6015ff6b35d"><code>f9ceb77</code></a> Update MIGRATION.md</li>
<li><a href="https://github.com/actions/download-artifact/commit/533298bc57c27f112a2c04a74a04a4d43e2866fd"><code>533298b</code></a> Merge pull request <a href="https://redirect.github.com/actions/download-artifact/issues/370">#370</a> from froblesmartin/patch-1</li>
<li><a href="https://github.com/actions/download-artifact/commit/d06289e120b300840a833b25db66cb8c19f5d274"><code>d06289e</code></a> docs: small migration fix</li>
<li><a href="https://github.com/actions/download-artifact/commit/d0ce8fd1167ed839810201de977912a090ab10a7"><code>d0ce8fd</code></a> Merge pull request <a href="https://redirect.github.com/actions/download-artifact/issues/354">#354</a> from actions/Jcambass-patch-1</li>
<li><a href="https://github.com/actions/download-artifact/commit/1ce0d91ace59dfbf6763107ee5aa8466ebbadf48"><code>1ce0d91</code></a> Add workflow file for publishing releases to immutable action package</li>
<li>See full diff in <a href="https://github.com/actions/download-artifact/compare/fa0a91b85d4f404e444e00e005971372dc801d16...cc203385981b70ca67e1cc392babf9cc229d5806">compare view</a></li>
</ul>
</details>
<br />

Updates `actions/upload-artifact` from 4.6.0 to 4.6.1
<details>
<summary>Release notes</summary>
<p><em>Sourced from <a href="https://github.com/actions/upload-artifact/releases">actions/upload-artifact's releases</a>.</em></p>
<blockquote>
<h2>v4.6.1</h2>
<h2>What's Changed</h2>
<ul>
<li>Update to use artifact 2.2.2 package by <a href="https://github.com/yacaovsnc"><code>@​yacaovsnc</code></a> in <a href="https://redirect.github.com/actions/upload-artifact/pull/673">actions/upload-artifact#673</a></li>
</ul>
<p><strong>Full Changelog</strong>: <a href="https://github.com/actions/upload-artifact/compare/v4...v4.6.1">https://github.com/actions/upload-artifact/compare/v4...v4.6.1</a></p>
</blockquote>
</details>
<details>
<summary>Commits</summary>
<ul>
<li><a href="https://github.com/actions/upload-artifact/commit/4cec3d8aa04e39d1a68397de0c4cd6fb9dce8ec1"><code>4cec3d8</code></a> Merge pull request <a href="https://redirect.github.com/actions/upload-artifact/issues/673">#673</a> from actions/yacaovsnc/artifact_2.2.2</li>
<li><a href="https://github.com/actions/upload-artifact/commit/e9fad966ccdffceea5de0445882c9455934bcf8e"><code>e9fad96</code></a> license cache update for artifact</li>
<li><a href="https://github.com/actions/upload-artifact/commit/b26fd06e9da88a61ada55f23d7863325b1f115d3"><code>b26fd06</code></a> Update to use artifact 2.2.2 package</li>
<li>See full diff in <a href="https://github.com/actions/upload-artifact/compare/65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08...4cec3d8aa04e39d1a68397de0c4cd6fb9dce8ec1">compare view</a></li>
</ul>
</details>
<br />

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---

<details>
<summary>Dependabot commands and options</summary>
<br />

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</details>
diff --git a/.github/workflows/conformance.yml b/.github/workflows/conformance.yml
index 849ef67..80b0d17 100644
--- a/.github/workflows/conformance.yml
+++ b/.github/workflows/conformance.yml
@@ -37,7 +37,7 @@
         - name: Download Reference Exec Summary
           if: github.ref != 'refs/heads/main'
           continue-on-error: true
-          uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16
+          uses: actions/download-artifact@cc203385981b70ca67e1cc392babf9cc229d5806
           with:
             name: reference_exec_summary
 
@@ -49,7 +49,7 @@
 
         - name: Upload Reference Summary iff on main branch
           if: github.ref == 'refs/heads/main'
-          uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08
+          uses: actions/upload-artifact@4cec3d8aa04e39d1a68397de0c4cd6fb9dce8ec1
           with:
             name: reference_exec_summary
             path: conformance/TEMP_DATA/testReports/exec_summary.json
diff --git a/.github/workflows/intl4x_artifacts.yml b/.github/workflows/intl4x_artifacts.yml
index 76181ce..786b666 100644
--- a/.github/workflows/intl4x_artifacts.yml
+++ b/.github/workflows/intl4x_artifacts.yml
@@ -152,7 +152,7 @@
         cp target/x86_64-pc-windows-msvc/release/icu4x-datagen.exe bin/windows_x64-datagen.exe
     
     - name: Upload artifacts
-      uses: actions/upload-artifact@65c4c4a1ddee5b72f698fdd19549f0f0fb45cf08
+      uses: actions/upload-artifact@4cec3d8aa04e39d1a68397de0c4cd6fb9dce8ec1
       with:
         name: dart-${{matrix.os}}-${{ matrix.compiletype }}-libs
         path: submodules/icu4x/bin
@@ -170,7 +170,7 @@
           submodules: true
 
       - name: Download binaries
-        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16
+        uses: actions/download-artifact@cc203385981b70ca67e1cc392babf9cc229d5806
         with:
           merge-multiple: true
 
@@ -194,7 +194,7 @@
     if: github.event_name == 'push'
     steps:
       - name: Download binaries
-        uses: actions/download-artifact@fa0a91b85d4f404e444e00e005971372dc801d16
+        uses: actions/download-artifact@cc203385981b70ca67e1cc392babf9cc229d5806
 
       - name: Display structure of downloaded files
         run: ls -R