Remove windows 2019 from CI checks

Author: oscarbenjamin

.github/workflows/buildwheel.yml

@@ -87,7 +87,6 @@ jobs:
           ubuntu-22.04,
           ubuntu-24.04,
           ubuntu-24.04-arm,
-          windows-2019,
           windows-2022,
           windows-2025,
           macos-13,