Commit message contents were broken, not the commit messaging itself

.github/workflows/update-manifest.yml

@@ -30,4 +30,4 @@ jobs:
           - name: "Commit and push changes"
             uses: stefanzweifel/git-auto-commit-action@v5
             with:
-                commit_message: ${{ github.action }}[${{ github.id }}] triggered by ${{ github.actor }} ${{ github.sha }}
+                commit_message: "Automatic manifest update (triggered by ${{ github.actor }}: ${{ github.sha }})"