update set-output cmds

Author: 2bndy5

.github/workflows/sync-labels.yml

@@ -103,7 +103,7 @@ jobs:
         run: |
           # Use of this flag in the github-label-sync command will cause it to only check the validity of the
           # configuration.
-          echo "::set-output name=flag::--dry-run"
+          echo "flag=--dry-run" >> "$GITHUB_OUTPUT"
 
       - name: Checkout repository
         uses: actions/checkout@v3

.github/workflows/test-integration.yml

@@ -101,7 +101,7 @@ jobs:
       - name: Set report artifact name
         id: report-artifact-name
         run: |
-          echo "::set-output name=report-artifact-name::${{ github.job }}"
+          echo "report-artifact-name=${{ github.job }}" >> "$GITHUB_OUTPUT"
 
       - name: Save sketches report as workflow artifact
         uses: actions/upload-artifact@v3