Add GitHub action for release to RubyGems

.github/workflows/release.yml

@@ -0,0 +1,26 @@
+name: Publish gem
+
+on: workflow_dispatch
+
+jobs:
+ push:
+ runs-on: ubuntu-latest
+
+ permissions:
+ contents: write
+ id-token: write
+
+ # If you configured a GitHub environment on RubyGems, you must use it here.
+ environment: release
+
+ steps:
+ # Set up
+ - uses: actions/checkout@v4
+ - name: Set up Ruby
+ uses: ruby/setup-ruby@v1
+ with:
+ bundler-cache: true
+ ruby-version: ruby
+
+ # Release
+ - uses: rubygems/release-gem@v1