drop windows for 9.4.2

Author: wz1000

.github/workflows/test.yml

@@ -89,9 +89,6 @@ jobs:
            - os: ubuntu-latest
              ghc: '8.6.5'
              test: true
-           - os: windows-latest
-             ghc: '9.4.2'
-             test: true
            - os: windows-latest
              ghc: '9.2.4'
              test: true