Mark mono_repo outputs as generated (#1586)

Add a `.gitattributes` file to mark mono_repo outputs as generated files
which allows GitHub diff views to leave them collapsed by default.

Regenerate the file with the latest mono_repo.
diff --git a/.gitattributes b/.gitattributes
new file mode 100644
index 0000000..f189cdd
--- /dev/null
+++ b/.gitattributes
@@ -0,0 +1,2 @@
+.github/workflows/dart.yml linguist-generated=true
+tool/ci.sh linguist-generated=true
diff --git a/.github/workflows/dart.yml b/.github/workflows/dart.yml
index d28df20..a814b08 100644
--- a/.github/workflows/dart.yml
+++ b/.github/workflows/dart.yml
@@ -1,4 +1,4 @@
-# Created with package:mono_repo v5.0.0
+# Created with package:mono_repo v5.0.2
 name: Dart CI
 on:
   push:
@@ -27,13 +27,13 @@
           restore-keys: |
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: stable
       - id: checkout
         uses: actions/checkout@v2.3.4
       - name: mono_repo self validate
-        run: dart pub global activate mono_repo 5.0.0
+        run: dart pub global activate mono_repo 5.0.2
       - name: mono_repo self validate
         run: dart pub global run mono_repo generate --validate
   job_002:
@@ -50,7 +50,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:dev
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: dev
       - id: checkout
@@ -134,7 +134,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:dev
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: dev
       - id: checkout
@@ -165,7 +165,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:dev
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: dev
       - id: checkout
@@ -196,7 +196,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:dev
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: dev
       - id: checkout
@@ -227,7 +227,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:dev
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: dev
       - id: checkout
@@ -258,7 +258,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:dev
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: dev
       - id: checkout
@@ -289,7 +289,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:dev
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: dev
       - id: checkout
@@ -320,7 +320,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:dev
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: dev
       - id: checkout
@@ -351,7 +351,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:dev
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: dev
       - id: checkout
@@ -382,7 +382,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:stable
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: stable
       - id: checkout
@@ -413,7 +413,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:stable
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: stable
       - id: checkout
@@ -444,7 +444,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:stable
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: stable
       - id: checkout
@@ -475,7 +475,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:stable
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: stable
       - id: checkout
@@ -506,7 +506,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:stable
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: stable
       - id: checkout
@@ -537,7 +537,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:stable
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: stable
       - id: checkout
@@ -568,7 +568,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:stable
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: stable
       - id: checkout
@@ -599,7 +599,7 @@
             os:ubuntu-latest;pub-cache-hosted;dart:stable
             os:ubuntu-latest;pub-cache-hosted
             os:ubuntu-latest
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: stable
       - id: checkout
@@ -620,7 +620,7 @@
     name: "unit_test; windows; Dart dev; PKG: integration_tests/nnbd_opted_in; `dart test -p chrome,vm,node`"
     runs-on: windows-latest
     steps:
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: dev
       - id: checkout
@@ -641,7 +641,7 @@
     name: "unit_test; windows; Dart dev; PKG: integration_tests/nnbd_opted_out; `dart test -p chrome,vm,node`"
     runs-on: windows-latest
     steps:
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: dev
       - id: checkout
@@ -662,7 +662,7 @@
     name: "unit_test; windows; Dart stable; PKG: integration_tests/nnbd_opted_in; `dart test -p chrome,vm,node`"
     runs-on: windows-latest
     steps:
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: stable
       - id: checkout
@@ -683,7 +683,7 @@
     name: "unit_test; windows; Dart stable; PKG: integration_tests/nnbd_opted_out; `dart test -p chrome,vm,node`"
     runs-on: windows-latest
     steps:
-      - uses: dart-lang/setup-dart@v1.0
+      - uses: dart-lang/setup-dart@v1.2
         with:
           sdk: stable
       - id: checkout
diff --git a/tool/ci.sh b/tool/ci.sh
index 1595dc2..4b39064 100755
--- a/tool/ci.sh
+++ b/tool/ci.sh
@@ -1,5 +1,5 @@
 #!/bin/bash
-# Created with package:mono_repo v5.0.0
+# Created with package:mono_repo v5.0.2
 
 # Support built in commands on windows out of the box.
 # When it is a flutter repo (check the pubspec.yaml for "sdk: flutter")