Bug report
Bug description:
When using the virtualenv activate script in Git Bash for Windows, the environment is not correctly detected and paths are not converted.
This results in $PATH being set to something like D:\a\github-actions-shells\github-actions-shells\venv/Scripts:..., instead of /d/a/github-actions-shells/github-actions-shells/venv/Scripts.
Prior to #112508, the detection used $OSTYPE, which reports msys in Git Bash for Windows, however uname returns MINGW....
This is a regression in Python 3.13.0
CPython versions tested on:
3.13
Operating systems tested on:
Windows