[Actions] Struggle with package versions

.forgejo/workflows/publish.yaml

@@ -4,3 +4,9 @@ jobs:
     runs-on: node20
     steps:
       - uses: actions/checkout@v4
+      - uses: https://github.com/ruby/setup-ruby@v1
+        with:
+          ruby-version: '3.3' # Not needed with a .ruby-version file
+          bundler-cache: true # runs 'bundle install' and caches installed gems automatically
+      - run: bundle install
+      - run: jekyll help