Enable hook tests for windows

[aljazerzen]

Ok, as I manually verified, hooks and watch mostly work on windows via WSL.

The problem we still face is that when we invoke a command in WSL, it will run within WLS and think it is on Linux. This means it will look at /root/.config/edgedb for config instead of /mnt/c/Users/username/AppData/Roaming/edgedb.

Which means that gel instance list it will return different list of instances within WSL and outside. That breaks the tests we have for hooks (well, a similar thing with project stash).

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We now need to decide between two options:

• don't run hooks in WSL, but within windows instead. We should think how to execute scripts in this case.
• patch the CLI (and bindings) to understand that they are running on a linux within WSL and use the config from Windows FS instead.