Fixed git command to include new files into commit. (#9846)

Author: AlexeyKuznetsov-DD

.github/workflows/update-gradle-dependencies.yaml

@@ -55,7 +55,8 @@ jobs:
         run: |
           git config user.name "github-actions[bot]"
           git config user.email "41898282+github-actions[bot]@users.noreply.github.com"
-          git commit -a -m "chore: Update Gradle dependencies"
+          git add --all
+          git commit -m "chore: Update Gradle dependencies"
           echo "commit=$(git rev-parse HEAD)" >> $GITHUB_OUTPUT
       - name: Push changes
         uses: DataDog/commit-headless@5a0f3876e0fbdd3a86b3e008acf4ec562db59eee # action/v2.0.1