Merge pull request pytest-dev#13927 from pytest-dev/patchback/backports/9.0.x/3d80757431c209eaae411909119bcc38a6847739/pr-13922

[PR pytest-dev#13922/3d807574 backport][9.0.x] config: fix `UserWarning: Do not expect file_or_dir` on some Python 3.12 and 3.13 point versions

Author: bluetech

changelog/13910.bugfix.rst

@@ -0,0 +1 @@
+Fixed `UserWarning: Do not expect file_or_dir` on some earlier Python 3.12 and 3.13 point versions.

src/_pytest/config/argparsing.py

@@ -170,7 +170,7 @@ def parse_known_and_unknown_args(
             arguments, and a list of unknown flag arguments.
         """
         strargs = [os.fspath(x) for x in args]
-        if sys.version_info < (3, 12):
+        if sys.version_info < (3, 12, 8) or (3, 13) <= sys.version_info < (3, 13, 1):
             # Older argparse have a bugged parse_known_intermixed_args.
             namespace, unknown = self.optparser.parse_known_args(strargs, namespace)
             assert namespace is not None