Bump dependabot/fetch-metadata from 1.6.0 to 2.0.0 (#680)

Bumps [dependabot/fetch-metadata](https://github.com/dependabot/fetch-metadata) from 1.6.0 to 2.0.0.
- [Release notes](https://github.com/dependabot/fetch-metadata/releases)
- [Commits](dependabot/fetch-metadata@c9c4182...0fb2170)

---
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.yaml

@@ -15,7 +15,7 @@ jobs:
     steps:
       - name: Dependabot metadata
         id: metadata
-        uses: dependabot/fetch-metadata@c9c4182bf1b97f5224aee3906fd373f6b61b4526 # v1.6.0
+        uses: dependabot/fetch-metadata@0fb21704c18a42ce5aa8d720ea4b912f5e6babef # v2.0.0
         with:
           github-token: ${{ secrets.GITHUB_TOKEN }}