chore: Update publish workflow to depend on main workflow

.github/workflows/main.yml

@@ -1,6 +1,14 @@
 name: CI
 
-on: push
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - 'v*'
+  pull_request:
+    branches:
+      - main
 
 jobs:
   lint:

.github/workflows/publish.yml

@@ -1,12 +1,16 @@
 name: Publish Gem
 
 on:
-  push:
-    tags:
-      - 'v*'
+  workflow_run:
+    workflows: ["CI"]
+    types:
+      - completed
+    branches:
+      - main
 
 jobs:
-  build:
+  publish:
+    if: ${{ github.event.workflow_run.conclusion == 'success' && startsWith(github.ref, 'refs/tags/v') }}
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
@@ -18,8 +22,6 @@ jobs:
           echo 'gem: --no-document' >> ~/.gemrc
           gem install bundler
           bundle install
-      - name: Run tests 🧪
-        run: bundle exec ruby -Ilib test/*.rb
       - name: Build Gem 📦
         run: gem build *.gemspec
       - name: Publish Gem 🚀