chore(deps): bump bflad/action-milestone-comment from 1 to 2 (#1305)

Bumps [bflad/action-milestone-comment](https://github.com/bflad/action-milestone-comment) from 1 to 2.
- [Release notes](https://github.com/bflad/action-milestone-comment/releases)
- [Changelog](https://github.com/bflad/action-milestone-comment/blob/main/CHANGELOG.md)
- [Commits](bflad/action-milestone-comment@v1...v2)

---
updated-dependencies:
- dependency-name: bflad/action-milestone-comment
  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/close-milestone.yml

@@ -21,7 +21,7 @@ jobs:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
 
       - if: ${{ steps.close.outputs.milestone_id != null }}
-        uses: bflad/action-milestone-comment@v1
+        uses: bflad/action-milestone-comment@v2
         with:
           milestone: ${{ steps.close.outputs.milestone_id }}
           body: |