Use Trusted Publishers for releasing gem

.github/workflows/release.yml

@@ -8,10 +8,16 @@ on:
 jobs:
   build:
     runs-on: ubuntu-latest
+
+    permissions:
+      id-token: write # IMPORTANT: this permission is mandatory for trusted publishing
+      contents: write # IMPORTANT: this permission is required for `rake release` to push the release tag
+
     steps:
-      - uses: actions/checkout@v3
-      - name: Release Gem
-        uses: cadwallion/publish-rubygems-action@master
-        env:
-          GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}
-          RUBYGEMS_API_KEY: ${{secrets.RUBYGEMS_API_KEY}}
+      - uses: actions/checkout@v4
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+          ruby-version: '3.4'
+      - uses: rubygems/release-gem@v1