build(github): Bump dependabot/fetch-metadata in the gha group

Bumps the gha group with 1 update: [dependabot/fetch-metadata](https://github.com/dependabot/fetch-metadata).


Updates `dependabot/fetch-metadata` from 2.1.0 to 2.2.0
- [Release notes](https://github.com/dependabot/fetch-metadata/releases)
- [Commits](dependabot/fetch-metadata@v2.1.0...v2.2.0)

---
updated-dependencies:
- dependency-name: dependabot/fetch-metadata
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: gha
...

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

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

@@ -57,7 +57,7 @@ jobs:
     steps:
       - name: Retrieve Dependabot metadata
         id: dependabot-metadata
-        uses: "dependabot/fetch-metadata@v2.1.0"
+        uses: "dependabot/fetch-metadata@v2.2.0"
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
       - name: Wait for status checks