Add more OSes to run on.

Author: isaacrobinson2000

.github/workflows/pytest.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        os: [ubuntu-latest, windows-latest, macos-latest]
+        os: [ubuntu-latest, macos-latest]
         python-version: ["3.7", "3.8", "3.9"]
 
     steps: