Merge pull request #467 from ruby-syntax-tree/dependabot/github_actions/dependabot/fetch-metadata-2.2.0

Bump dependabot/fetch-metadata from 2.1.0 to 2.2.0

Author: github-actions[bot]

Diff for: .github/workflows/auto-merge.yml

@@ -12,7 +12,7 @@ jobs:
     steps:
       - name: Dependabot metadata
         id: metadata
-        uses: dependabot/fetch-metadata@v2.1.0
+        uses: dependabot/fetch-metadata@v2.2.0
         with:
           github-token: "${{ secrets.GITHUB_TOKEN }}"
       - name: Enable auto-merge for Dependabot PRs