chore(deps): update dart-lang/setup-dart digest to 8ef13bc

Author: renovate[bot]

.github/workflows/publish.yml

@@ -18,7 +18,7 @@ jobs:
         with:
           channel: 'stable'
       # Setup Dart SDK with JWT token
-      - uses: dart-lang/setup-dart@a57a6c04cf7d4840e88432aad6281d1e125f0d46
+      - uses: dart-lang/setup-dart@8ef13bcca6c9bb2219391088bc9d968125f68406
       # Minimal package setup and dry run checks.
       - name: Install dependencies
         run: flutter packages get