Bump release-drafter/release-drafter from 5.20.1 to 5.21.0

Bumps [release-drafter/release-drafter](https://github.com/release-drafter/release-drafter) from 5.20.1 to 5.21.0.
- [Release notes](https://github.com/release-drafter/release-drafter/releases)
- [Commits](release-drafter/release-drafter@v5.20.1...v5.21.0)

---
updated-dependencies:
- dependency-name: release-drafter/release-drafter
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

.github/workflows/release.yml

@@ -22,7 +22,7 @@ jobs:
           go-version: 1.18
 
       - name: Draft release notes
-        uses: release-drafter/release-drafter@v5.20.1
+        uses: release-drafter/release-drafter@v5.21.0
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}