Can't read `env:` resource on Windows

[z-jxy]

Version: Pkl 0.28.2 (Windows 10.0, native)

Pkl fails to find the env: resource on Windows

➜ pkl eval .\tests\pkl\allowed-resources.pkl
ΓÇôΓÇô Pkl Error ΓÇôΓÇô
Cannot find resource `env:PATH`.

1 | path = read("env:PATH")
           ^^^^^^^^^^^^^^^^
at allowed-resources#path (file:///C:/Users/user/tests/pkl/allowed-resources.pkl, line 1)

106 | text = renderer.renderDocument(value)
             ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
at pkl.base#Module.output.text (https://github.com/apple/pkl/blob/0.28.2/stdlib/base.pkl#L106)