ci: add macOS runner for accurate coverage

Author: indaco

.github/workflows/ci.yml

@@ -34,8 +34,11 @@ jobs:
 
   test:
     name: test
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os }}
     needs: lint
+    strategy:
+      matrix:
+        os: [ubuntu-latest, macos-latest]
 
     steps:
       - name: Checkout code

.github/workflows/coverage.yml

@@ -7,7 +7,7 @@ on:
 
 jobs:
   coverage:
-    runs-on: ubuntu-latest
+    runs-on: macos-latest
     steps:
       - name: Checkout code
         uses: actions/checkout@v5