Bump release-drafter/release-drafter from 5.20.0 to 5.21.0

Bumps [release-drafter/release-drafter](https://github.com/release-drafter/release-drafter) from 5.20.0 to 5.21.0.
- [Release notes](https://github.com/release-drafter/release-drafter/releases)
- [Commits](https://github.com/release-drafter/release-drafter/compare/v5.20.0...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] <support@github.com>

.github/workflows/create-prepare-release-pr.yaml

@@ -10,7 +10,7 @@ jobs:
     steps:
 
       - name: Update Draft
-        uses: release-drafter/release-drafter@v5.20.0
+        uses: release-drafter/release-drafter@v5.21.0
         id: draft
         env:
           GITHUB_TOKEN: ${{ secrets.JF_BOT_TOKEN }}

.github/workflows/publish.yaml

@@ -11,7 +11,7 @@ jobs:
         py_version: [ 'py2', 'py3' ]
     steps:
       - name: Update Draft
-        uses: release-drafter/release-drafter@v5.20.0
+        uses: release-drafter/release-drafter@v5.21.0
         if: ${{ matrix.py_version == 'py3' }}
         with:
           publish: true

.github/workflows/release-drafter.yaml

@@ -11,6 +11,6 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Update Release Draft
-        uses: release-drafter/release-drafter@v5.20.0
+        uses: release-drafter/release-drafter@v5.21.0
         env:
           GITHUB_TOKEN: ${{ secrets.JF_BOT_TOKEN }}