CI: use rubygems/[email protected] with id-token; checkout v5 already set

Author: masterkain

.github/workflows/release.yml

@@ -8,6 +8,7 @@ on:
 
 permissions:
   contents: write
+  id-token: write
 
 jobs:
   release:
@@ -19,10 +20,5 @@ jobs:
         with:
           ruby-version: '3.4'
           bundler-cache: true
-      - name: Build gem
-        run: |
-          gem build *.gemspec
-      - name: Publish to RubyGems
-        uses: cadwallion/publish-rubygems-action@master
-        env:
-          RUBYGEMS_API_KEY: ${{ secrets.RUBYGEMS_API_KEY }}
+      - name: Release gem (RubyGems trusted publishing)
+        uses: rubygems/[email protected]