[docs] [issue42317] Docs of `typing.get_args`: Mention that due to caching of typing generics the order of arguments for Unions can be different from the one of the returned tuple

Change by Dominik V. : ---------- keywords: +patch pull_requests: +22150 stage: needs patch -> patch review pull_request: https://github.com/python/cpython/pull/23254 _______________________________________ Python tracker https://bugs.python.org/issue42317 _______________________________________