chore: Add git diff logs for diagnostics

Author: filzrev

.github/workflows/ci.yml

@@ -77,6 +77,9 @@ jobs:
         SNAPSHOT_TEST: true
         BUILD_SERVER: ${{ github.event_name != 'pull_request' }}
 
+    # Output file names that are updated by snapshot tests.
+    - run: git diff --name-only
+
     - uses: stefanzweifel/git-auto-commit-action@v5
       if: github.event_name == 'pull_request'
       with: