Add release workflow using trusted publishing

Author: oschwald

.github/workflows/release.yml

@@ -0,0 +1,28 @@
+name: Release
+
+on:
+  workflow_dispatch:
+  pull_request:
+  push:
+    branches:
+      - main
+  release:
+    types:
+      - published
+
+jobs:
+  push:
+    if: github.event_name == 'release' && github.event.action == 'published'
+    runs-on: ubuntu-latest
+    environment: release
+    permissions:
+      id-token: write
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+          ruby-version: ruby
+
+      - uses: rubygems/release-gem@v1