Upgrade docker smoke tests to use Ruby 3.4

Author: byroot

.github/workflows/devcontainer-smoke-test.yml

@@ -24,10 +24,10 @@ jobs:
           username: ${{ github.repository_owner }}
           password: ${{ secrets.GITHUB_TOKEN }}
 
-      - name: Set up Ruby 3.3
+      - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.3
+          ruby-version: 3.4
           bundler-cache: true
 
       - name: Generate rails app sqlite3

.github/workflows/rail_inspector.yml

@@ -19,9 +19,9 @@ jobs:
       - uses: actions/checkout@v4
       - name: Remove Gemfile.lock
         run: rm -f Gemfile.lock
-      - name: Set up Ruby 3.3
+      - name: Set up Ruby
         uses: ruby/setup-ruby@v1
         with:
-          ruby-version: 3.3
+          ruby-version: 3.4
           bundler-cache: true
       - run: cd tools/rail_inspector && bundle exec rake

.github/workflows/rails-new-docker.yml

@@ -17,10 +17,10 @@ jobs:
     - uses: actions/checkout@v4
     - name: Remove Gemfile.lock
       run: rm -f Gemfile.lock
-    - name: Set up Ruby 3.3
+    - name: Set up Ruby
       uses: ruby/setup-ruby@v1
       with:
-        ruby-version: 3.3.1
+        ruby-version: 3.4
         bundler-cache: true
     - name: Generate --dev app
       run: |