Refactor Github Action per b/485167538 (firebase#596)

Co-authored-by: Ben Knutson <benknutson@google.com>

Author: google-admin

.github/workflows/issue-labels.yml

@@ -16,13 +16,16 @@ jobs:
       - name: Check if the comment is from the OP
         id: check-op
         run: |
-          OP=${{ github.event.issue.user.login }}
-          COMMENTER=${{ github.event.comment.user.login }}
+          OP=${GITHUB_EVENT_ISSUE_USER_LOGIN}
+          COMMENTER=${GITHUB_EVENT_COMMENT_USER_LOGIN}
           if [ "$OP" = "$COMMENTER" ]; then
             echo "op_comment=true" >> $GITHUB_ENV
           else
             echo "op_comment=false" >> $GITHUB_ENV
           fi
+        env:
+          GITHUB_EVENT_ISSUE_USER_LOGIN: ${{ github.event.issue.user.login }}
+          GITHUB_EVENT_COMMENT_USER_LOGIN: ${{ github.event.comment.user.login }}
       - name: Add 'Needs Attention' label if OP responded
         if: env.op_comment == 'true'
         uses: actions-ecosystem/action-add-labels@v1
@@ -48,4 +51,4 @@ jobs:
         with:
           labels: 'Needs Attention'
         env:
-          GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}
+          GITHUB_TOKEN: ${{ secrets.GH_TOKEN }}

.github/workflows/unit_tests.yml

@@ -57,14 +57,18 @@ jobs:
         if: matrix.target == 'html'
         run: |
           melos exec \
-            --scope=${{ matrix.package }}* \
+            --scope=${MATRIX_PACKAGE}* \
             --dir-exists="test" \
             --fail-fast -- "flutter test --platform chrome"
+        env:
+          MATRIX_PACKAGE: ${{ matrix.package }}
 
       - name: Run unit tests
         if: matrix.target == 'io'
         run: |
           melos exec \
-            --scope=${{ matrix.package }}* \
+            --scope=${MATRIX_PACKAGE}* \
             --dir-exists="test" \
             --fail-fast -- "flutter test"
+        env:
+          MATRIX_PACKAGE: ${{ matrix.package }}