build(github): Bump pascalgn/automerge-action in the gha group

Bumps the gha group with 1 update: [pascalgn/automerge-action](https://github.com/pascalgn/automerge-action).


Updates `pascalgn/automerge-action` from 0.16.3 to 0.16.4
- [Release notes](https://github.com/pascalgn/automerge-action/releases)
- [Commits](pascalgn/automerge-action@v0.16.3...v0.16.4)

---
updated-dependencies:
- dependency-name: pascalgn/automerge-action
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: gha
...

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

.github/workflows/auto-approve-merge-dependabot.yml

@@ -73,7 +73,7 @@ jobs:
           steps.wait-for-status-checks.outputs.status == 'success' &&
           steps.dependabot-metadata.outputs.update-type != 'version-update:semver-major'
         id: automerge
-        uses: "pascalgn/automerge-action@v0.16.3"
+        uses: "pascalgn/automerge-action@v0.16.4"
         env:
           GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
           MERGE_LABELS: "automerge,!major"