Add Trusted Publishing workflow (#10)

Fix #8

Author: Watson1978

.github/workflows/release.yml

@@ -0,0 +1,21 @@
+name: Release
+on:
+  push:
+    tags:
+      - "v*"
+jobs:
+  rubygems:
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+    environment: release
+    steps:
+      - uses: actions/checkout@v6
+      - uses: ruby/setup-ruby@v1
+        with:
+          ruby-version: ruby
+          bundler-cache: true
+      - uses: rubygems/configure-rubygems-credentials@v1.0.0
+      - name: Publish gem
+        run: |
+          bundle exec rake release:rubygem_push

Rakefile

@@ -8,4 +8,14 @@ Rake::TestTask.new do |t|
   t.warning = true
 end
 
+release_task = Rake.application["release"]
+# We use Trusted Publishing.
+release_task.prerequisites.delete("build")
+release_task.prerequisites.delete("release:rubygem_push")
+release_task_comment = release_task.comment
+if release_task_comment
+  release_task.clear_comments
+  release_task.comment = release_task_comment.gsub(/ and build.*$/, "")
+end
+
 task :default => :test