Associate .py with python on Windows

Description:
Associate .py with python on Windows when running actions/setup-python@v4

Justification:
I want to test that my .py have executable permission set relying on shebang line. That passes on Ubuntu. Windows doesn't care about file permissions set by git, but it has a different mechanism:
https://docs.python.org/3/faq/windows.html#how-do-i-make-python-scripts-executable

On Windows, the standard Python installer already associates the .py extension with a file type (Python.File) and gives that file type an open command that runs the interpreter (D:\Program Files\Python\python.exe "%1" %*).

and https://docs.python.org/3/using/windows.html#from-file-associations:

The launcher should have been associated with Python files (i.e. .py, .pyw, .pyc files) when it was installed.

Apparently that doesn't happen when using actions/setup-python@v4

Are you willing to submit a PR?
No

Commencez par le chemin de configuration Windows de actions/setup-python@v4 et examinez la documentation Python liée sur les associations de fichiers Windows. Confirmez comment l’action installe ou expose actuellement Python, puis vérifiez qu’un script .py utilisant un shebang peut s’exécuter dans une action Windows ; le travail est considéré comme terminé lorsque l’association fonctionne de manière cohérente dans ce contexte.