Run tests on matrix platform.

Author: fabiocaccamo

.github/workflows/test-package.yml

@@ -13,14 +13,14 @@ jobs:
 
   test:
 
-    runs-on: ubuntu-latest
-
     strategy:
       fail-fast: false
       matrix:
         platform: [ubuntu-latest, macos-latest, windows-latest]
         python-version: ['3.10', '3.11', '3.12', '3.13', '3.14']
 
+    runs-on: ${{ matrix.platform }}
+
     steps:
 
     - uses: actions/checkout@v6