Debug: Add verbose output for Ruby 3.4 hanging issue

- Only run Ruby 3.4 to speed up testing
- Run 5 parallel jobs with 3 test attempts each
- Add verbose test output (-v flag)
- Add 60 second timeout to catch hangs
- Show Ruby/minitest versions
- Check for zombie processes

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

Author: koji-takao-sp

.github/workflows/ci.yml

@@ -5,27 +5,52 @@ on: [push, pull_request]
 jobs:
   build:
     runs-on: ubuntu-latest
-    name: Ruby ${{ matrix.ruby }}
+    name: Ruby 3.4 - Run ${{ matrix.run }}
     strategy:
+      fail-fast: false
       matrix:
-        ruby:
-          - '2.6'
-          - '2.7'
-          - '3.0'
-          - '3.1'
-          - '3.2'
-          - '3.3'
-          - '3.4'
-          - '4.0'
+        run: [1, 2, 3, 4, 5]
 
     steps:
     - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
+
     - name: Set up Ruby
       uses: ruby/setup-ruby@90be1154f987f4dc0fe0dd0feedac9e473aa4ba8 # v1.286.0
       with:
-        ruby-version: ${{ matrix.ruby }}
+        ruby-version: '3.4'
         bundler-cache: true
+
+    - name: Show Ruby and gem versions
+      run: |
+        ruby -v
+        gem list minitest
+        bundle show minitest || true
+
     - name: Run setup commands
       run: pushd test/fixtures/coffee && npm install && popd
-    - name: Run tests
-      run: script/test
+
+    - name: Run tests (attempt 1) with verbose output
+      run: |
+        echo "=== Starting test run 1 at $(date) ==="
+        echo "PID: $$"
+        timeout 60 bundle exec rake test TESTOPTS='-v' 2>&1 || echo "Test run 1 completed or timed out"
+        echo "=== Finished test run 1 at $(date) ==="
+
+    - name: Run tests (attempt 2) with verbose output
+      run: |
+        echo "=== Starting test run 2 at $(date) ==="
+        timeout 60 bundle exec rake test TESTOPTS='-v' 2>&1 || echo "Test run 2 completed or timed out"
+        echo "=== Finished test run 2 at $(date) ==="
+
+    - name: Run tests (attempt 3) with verbose output
+      run: |
+        echo "=== Starting test run 3 at $(date) ==="
+        timeout 60 bundle exec rake test TESTOPTS='-v' 2>&1 || echo "Test run 3 completed or timed out"
+        echo "=== Finished test run 3 at $(date) ==="
+
+    - name: Check for zombie processes
+      if: always()
+      run: |
+        echo "=== Process list ==="
+        ps aux | grep -E "(ruby|node)" || true
+        echo "=== Done ==="