github-actions(deps): bump dependabot/fetch-metadata from 1.3.1 to 1.6.0

Bumps [dependabot/fetch-metadata](https://github.com/dependabot/fetch-metadata) from 1.3.1 to 1.6.0.
- [Release notes](https://github.com/dependabot/fetch-metadata/releases)
- [Commits](dependabot/fetch-metadata@v1.3.1...v1.6.0)

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

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

Author: dependabot[bot]

.github/workflows/dependabot-review.yaml

@@ -18,7 +18,7 @@ jobs:
           persist-credentials: "false"
       - name: "Dependabot metadata"
         id: "dependabot-metadata"
-        uses: "dependabot/fetch-metadata@v1.3.1"
+        uses: "dependabot/fetch-metadata@v1.6.0"
       - name: "Enable auto-merge for Dependabot PRs"
         run: "gh pr merge --auto --merge $PR_URL"
         env: