ci: try to fix tests

Author: yeshan333

.github/workflows/e2e_test_windows.yaml

@@ -39,8 +39,8 @@ jobs:
       - name: test installation
         if: runner.os == 'Windows'
         run: |
-          vfox activate pwsh > vfox_env.powershell
-          . vfox_env.powershell
+          vfox activate pwsh > vfox_env.ps1
+          . vfox_env.ps1
           echo $env:__VFOX_SHELL
           echo $env:__VFOX_CURTMPPATH
           cat $PROFILE