ci: Test windows isolated

Author: CodeWithKyrian

.github/workflows/tests.yml

@@ -8,8 +8,8 @@ jobs:
     strategy:
       fail-fast: false
       matrix:
-#        os: [macos-latest, macos-13]
-        os: [ubuntu-latest]
+#        os: [macos-latest, macos-13, ubuntu-latest]
+        os: [windows-latest]
         php: [8.1, 8.2, 8.3, 8.4]
 
     name: Tests PHP${{ matrix.php }} - ${{ matrix.os }}