Improve performance replacing os.listdir() with os.scandir()

[Paolo Melchiorre]

Use os.scandir() instead of os.listdir() in the remaining occurrences in the code:
​https://github.com/search?q=repo%3Adjango%2Fdjango+os.listdir&type=code

Based on the ​Python documentation

Using scandir() instead of listdir() can significantly increase the performance of code that also needs file type or file attribute information, because os.DirEntry objects expose this information if the operating system provides it when scanning a directory.

[Sarah Boyce]

Similar to #29689 accepting, thank you
Note that additional benchmarks in ​django-asv are always welcome 👍

[Tim Graham]

The description makes it sound like this is a simple find and replace all, however, do all usages "also need file type or file attribute information"?

[Amir Karimi]

Replying to Tim Graham:

The description makes it sound like this is a simple find and replace all, however, do all usages "also need file type or file attribute information"?

Good point! Except this case: ​https://github.com/django/django/blob/aa74c4083e047473ac385753e047e075e8f04890/scripts/manage_translations.py#L42
I didn't find any other cases where file attributes (is_dir, etc) are needed, and only their names or the number of list_dir output are needed. The only edge that "scandir" may still have is its less memory consumption when it comes to large folders (which I suspect is the case in any of these usages)