Bump dependabot/fetch-metadata from 1 to 2

Bumps [dependabot/fetch-metadata](https://github.com/dependabot/fetch-metadata) from 1 to 2.
- [Release notes](https://github.com/dependabot/fetch-metadata/releases)
- [Commits](dependabot/fetch-metadata@v1...v2)

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

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

.github/workflows/auto-merge.yaml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - id: metadata
-        uses: dependabot/fetch-metadata@v1
+        uses: dependabot/fetch-metadata@v2
 
       - name: Enable auto-merge for Dependabot PRs
         if: ${{ steps.metadata.outputs.update-type == 'version-update:semver-patch' }}