Update gem-push.yml

.github/workflows/gem-push.yml

@@ -3,27 +3,22 @@ name: Ruby Gem
 on: workflow_dispatch
 
 jobs:
-  build:
-    name: Build + Publish
+  push:
+    name: Push gem to RubyGems.org
     runs-on: ubuntu-latest
+
     permissions:
-      contents: read
-      packages: write
+      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@v4
-    - name: Set up Ruby 3.2
-      uses: ruby/setup-ruby@v1
-      with:
-        ruby-version: '3.2'
+      # Set up
+      - uses: actions/checkout@v4
+      - name: Set up Ruby
+        uses: ruby/setup-ruby@v1
+        with:
+          bundler-cache: true
+          ruby-version: ruby
 
-    - name: Publish to RubyGems
-      run: |
-        mkdir -p $HOME/.gem
-        touch $HOME/.gem/credentials
-        chmod 0600 $HOME/.gem/credentials
-        printf -- "---\n:rubygems_api_key: ${GEM_HOST_API_KEY}\n" > $HOME/.gem/credentials
-        gem build *.gemspec
-        gem push *.gem
-      env:
-        GEM_HOST_API_KEY: "${{ secrets.RUBYGEMS_AUTH_TOKEN }}"
+      # Release
+      - uses: rubygems/release-gem@v1