Fix: Tests were not running on Windows

Author: hoh

.github/workflows/pytest.yml

@@ -17,7 +17,7 @@ jobs:
       fail-fast: false
       matrix:
         python-version: [ "3.9", "3.10", "3.11", "3.12" ]
-        os: [ubuntu-22.04, ubuntu-24.04]
+        os: [ubuntu-22.04, ubuntu-24.04, windows-2022]
     runs-on: ${{ matrix.os }}
 
     steps: