.github/workflows/test.yml in extralite-bundle-2.8.1 vs .github/workflows/test.yml in extralite-bundle-2.8.2

@@ -9,14 +9,16 @@
 jobs:
   build:
     strategy:
       fail-fast: false
       matrix:
-        os: [ubuntu-latest, macos-latest]
+        # macos-latest uses arm64, macos-13 uses x86
+        os: [ubuntu-latest, macos-latest, macos-13]
         ruby: ['3.0', '3.1', '3.2', '3.3', 'head']
 
-    name: >-
-      ${{matrix.os}}, ${{matrix.ruby}}
+    name: ${{matrix.os}}, ${{matrix.ruby}}
+
+    if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name != github.event.pull_request.base.repo.full_name
 
     runs-on: ${{matrix.os}}
     steps:
     - uses: actions/checkout@v4
     - uses: ruby/setup-ruby@v1