chore(ci): bump python-semantic-release/python-semantic-release from 9.20.0 to 9.21.0 in the github-actions group (#85)

Author: dependabot[bot]

.github/workflows/ci.yml

@@ -172,14 +172,14 @@ jobs:
 
       # Do a dry run of PSR
       - name: Test release
-        uses: python-semantic-release/python-semantic-release@v9.20.0
+        uses: python-semantic-release/python-semantic-release@v9.21.0
         if: github.ref_name != 'main'
         with:
           root_options: --noop
 
       # On main branch: actual PSR + upload to PyPI & GitHub
       - name: Release
-        uses: python-semantic-release/python-semantic-release@v9.20.0
+        uses: python-semantic-release/python-semantic-release@v9.21.0
         id: release
         if: github.ref_name == 'main'
         with: