chore: migrate publishing workflow to piggyback off release-please

.github/workflows/release-please.yml

@@ -1,26 +1,43 @@
-name: "Release, Please!"
+name: "Release, please!"
 
 on:
   push:
     branches:
-      - main
       - master
 
 permissions:
   contents: write
-  packages: write
   pull-requests: write
 
 jobs:
   release-please:
-    name: Release Please
     runs-on: ubuntu-latest
+    outputs:
+      release_created: ${{ steps.release.outputs.release_created }}
+      tag_name: ${{ steps.release.outputs.tag_name }}
     steps:
-      - name: Update Release PR
-        id: release
-        # v4.1.3
-        uses: googleapis/release-please-action@7987652d64b4581673a76e33ad5e98e3dd56832f
-        with:
-          config-file: .github/release-please-config.json
-          manifest-file: .github/release-please-manifest.json
-          token: ${{ secrets.JEKYLLBOT_TOKEN }}
+    - name: Run Release Please
+      id: release
+      uses: googleapis/release-please-action@v4
+      with:
+        config-file: .github/release-please-config.json
+        manifest-file: .github/release-please-manifest.json
+        token: ${{ secrets.JEKYLLBOT_TOKEN }}
+
+  publish-gem:
+    needs: release-please
+    if: ${{ needs.release-please.outputs.release_created == 'true' }}
+    runs-on: ubuntu-latest
+    permissions:
+      id-token: write
+      contents: write
+    steps:
+    - name: Checkout Repository
+      uses: actions/checkout@v6
+    - name: Set up Ruby
+      uses: ruby/setup-ruby@v1
+      with:
+        ruby-version: '3.3'
+        bundler-cache: true
+    - name: Build and Publish Gem
+      uses: rubygems/release-gem@v1