Bump ad-m/github-push-action

Bumps [ad-m/github-push-action](https://github.com/ad-m/github-push-action) from 0fafdd62b84042d49ec0cb92d9cac7f7ce4ec79e to 9a2e3c14aaecf56d5816dc3a54514f82050820b2.
- [Release notes](https://github.com/ad-m/github-push-action/releases)
- [Commits](ad-m/github-push-action@0fafdd6...9a2e3c1)

---
updated-dependencies:
- dependency-name: ad-m/github-push-action
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

.github/workflows/publish-firefox-development.yml

@@ -83,6 +83,6 @@ jobs:
           git commit -a -m "${{ github.event.release.name }} - ${{ github.event.release.html_url }}"
 
       - name: Push changes
-        uses: ad-m/github-push-action@0fafdd62b84042d49ec0cb92d9cac7f7ce4ec79e # pin@master
+        uses: ad-m/github-push-action@9a2e3c14aaecf56d5816dc3a54514f82050820b2 # pin@master
         with:
           branch: metadata