fix webhook uri (#1397)

diff --git a/.github/workflows/dart.yml b/.github/workflows/dart.yml
index 81bc070..d001440 100644
--- a/.github/workflows/dart.yml
+++ b/.github/workflows/dart.yml
@@ -214,6 +214,6 @@
       - run: |
           curl -H "Content-Type: application/json" -X POST -d \
             "{'text':'Build failed! ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID}'}" \
-            "${BUILD_AND_TEST_TEAM_CHAT_WEBHOOK_URL}"
+            "${CHAT_WEBHOOK_URL}"
         env:
           CHAT_WEBHOOK_URL: "${{ secrets.BUILD_AND_TEST_TEAM_CHAT_WEBHOOK_URL }}"
diff --git a/mono_repo.yaml b/mono_repo.yaml
index df9130e..dc1264e 100644
--- a/mono_repo.yaml
+++ b/mono_repo.yaml
@@ -15,7 +15,7 @@
         - run: >
             curl -H "Content-Type: application/json" -X POST -d \
               "{'text':'Build failed! ${GITHUB_SERVER_URL}/${GITHUB_REPOSITORY}/actions/runs/${GITHUB_RUN_ID}'}" \
-              "${BUILD_AND_TEST_TEAM_CHAT_WEBHOOK_URL}"
+              "${CHAT_WEBHOOK_URL}"
           env:
             CHAT_WEBHOOK_URL: ${{ secrets.BUILD_AND_TEST_TEAM_CHAT_WEBHOOK_URL }}