Fix conda environment path resolution on Windows

[lucaSartore]

Fix conda environment path resolution on Windows

On Linux, the conda environment’s Python executable is located at:

<conda_env_path>/<conda_env_name>/bin/python

Whereas on Windows it is located at:

<conda_env_path>\<conda_env_name>\python.exe

This means that to correctly resolve the conda base path (starting from the executable), get_base needs to be called twice on Linux, but only once on Windows.

Without this adjustment, environments were not being activated properly. In my case, this caused nvim-dap-python to work as expected on Linux but fail on Windows.

This PR makes the necessary changes to fix the issue.

[linux-cultist]

Hi!

Thank you very much for the PR, but we need to merge it into main branch from today. :) Main has gotten all the changes from the regexp branch so should not cause any problems.

[lucaSartore]

That was a bit of unlucky timing I guess… Anyway, now it should be good to go.