Use v5 in update-changelog Workflow

Author: stefanzweifel

.github/workflows/update-changelog.yaml

@@ -27,7 +27,7 @@ jobs:
           latest-version: ${{ github.event.release.name }}
 
       - name: Commit updated CHANGELOG
-        uses: stefanzweifel/git-auto-commit-action@v4
+        uses: stefanzweifel/git-auto-commit-action@v5
         with:
           branch: master
           commit_message: Update CHANGELOG