Bump dependabot/fetch-metadata from 1 to 2 (#170)

Bumps [dependabot/fetch-metadata](https://github.com/dependabot/fetch-metadata) from 1 to 2.
- [Release notes](https://github.com/dependabot/fetch-metadata/releases)
- [Commits](https://github.com/dependabot/fetch-metadata/compare/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>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

.github/workflows/auto-merge.yml

@@ -11,7 +11,7 @@ jobs:
     if: ${{ github.repository_owner == 'monosans' && github.actor == 'dependabot[bot]' }}
     steps:
       - id: dependabot-metadata
-        uses: dependabot/fetch-metadata@v1
+        uses: dependabot/fetch-metadata@v2
       - if: ${{ steps.dependabot-metadata.outputs.update-type != 'version-update:semver-major' && steps.dependabot-metadata.outputs.package-ecosystem != 'docker' }}
         run: gh pr merge --auto --delete-branch --squash "${PR_URL}"
         env: