local[].popen can hang on Windows

[snowkoan]

local.[cmd].popen is hardcoded to redirect stdout to a named pipe. This can, quite easily, hang if the child process writes enough to stdout. Two potential fixes:

1. Fix the default behavior to match subprocess.Popen, which is to not redirect stdout.
   OR
2. Provide a way to redirect stdout, instead of hardcoding it to use a named pipe.

I wrote an article about this behavior here: https://needleinathreadstack.wordpress.com/2024/08/26/debugging-python-for-fame-and-blog-posts/