chore: bump dependabot/fetch-metadata from 1.6.0 to 2.1.0 (#122)

Bumps [dependabot/fetch-metadata](https://github.com/dependabot/fetch-metadata) from 1.6.0 to 2.1.0.
- [Release notes](https://github.com/dependabot/fetch-metadata/releases)
- [Commits](dependabot/fetch-metadata@c9c4182...5e5f996)

---
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/dependabot-approve-and-auto-merge.yml

@@ -19,7 +19,7 @@ jobs:
     steps:
       - name: Dependabot metadata
         id: dependabot-metadata
-        uses: dependabot/fetch-metadata@c9c4182bf1b97f5224aee3906fd373f6b61b4526 # v1.6.0
+        uses: dependabot/fetch-metadata@5e5f99653a5b510e8555840e80cbf1514ad4af38 # v2.1.0
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"