chore(deps): update stefanzweifel/git-auto-commit-action action to v6 (#58)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/renovate.yaml

@@ -42,7 +42,7 @@ jobs:
           fi
 
       - name: Commit chart version
-        uses: stefanzweifel/git-auto-commit-action@v5
+        uses: stefanzweifel/git-auto-commit-action@v6
         if: steps.commit_exists.outputs.result == 'false'
         with:
           commit_message: ${{ env.COMMIT_MESSAGE }}