Cannot find ruff on Windows in venv using --system-site-packages

[markuspi]

python -m ruff can't find ruff.exe on Windows when using a virtual environment generated using --system-site-packages:

1. Prerequisite: have ruff installed system-wide on Windows. The bug does not trigger if it is installed in the per-user packages in AppData.
   Example: I have a Python311 installed in C:\Python311, with ruff at C:\Python311\Lib\site-packages\ruff\__main__.py and C:\Python311\Scripts\ruff.exe.

2. Create virtual environment using --system-site-packages flag

   C:\Python311\python -m venv --system-site-packages myvenv

3. Using virtual environment to run python -m ruff results in FileNotFoundError.

   .\myvenv\Scripts\python -m ruff

   Traceback (most recent call last):
     File "<frozen runpy>", line 198, in _run_module_as_main
     File "<frozen runpy>", line 88, in _run_code
     File "C:\Python311\Lib\site-packages\ruff\__main__.py", line 40, in <module>
       ruff = os.fsdecode(find_ruff_bin())
                          ^^^^^^^^^^^^^^^
     File "C:\Python311\Lib\site-packages\ruff\__main__.py", line 36, in find_ruff_bin
       raise FileNotFoundError(scripts_path)
   FileNotFoundError: C:\[...]\myvenv\Scripts\ruff.exe
   

Ruff version: 0.6.2