CI: publish gem action.

.github/workflows/ci.yaml

@@ -55,14 +55,3 @@ jobs:
         id: release
         if: github.ref == 'refs/heads/main'
 
-      - 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_API_KEY}}"
-        if: ${{ steps.release.outputs.release_created }}

.github/workflows/publish-gem.yaml

@@ -0,0 +1,37 @@
+name: Publish Ruby Gem
+
+on:
+  release:
+    types: [created]
+
+permissions:
+  contents: read
+  pull-requests: read # to detect changes files
+
+jobs:
+  publish-gem:
+    name: Publish Ruby Gem
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout Code
+        uses: actions/checkout@v4
+
+      - uses: ruby/setup-ruby@v1
+        with:
+          # We are not letting this step to run bundle install, we will do it later
+          bundler-cache: false
+
+      - name: Install dependencies
+        run: bundle install
+
+      - 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_API_KEY}}"
+        if: ${{ steps.release.outputs.release_created }}