[pathlib] Add owner, group methods on Windows (#14536)

Author: donbarbos

stdlib/@tests/stubtest_allowlists/win32-py314.txt

@@ -3,8 +3,6 @@
 # ====================================================================
 
 compression.zlib.ZLIBNG_VERSION
-pathlib.Path.group
-pathlib.Path.owner
 zlib.ZLIBNG_VERSION
 
 

stdlib/pathlib/__init__.pyi

@@ -245,9 +245,13 @@ class Path(PurePath):
         self, mode: str, buffering: int = -1, encoding: str | None = None, errors: str | None = None, newline: str | None = None
     ) -> IO[Any]: ...
 
-    # These methods do "exist" on Windows on <3.13, but they always raise NotImplementedError.
+    # These methods do "exist" on Windows, but they always raise NotImplementedError.
     if sys.platform == "win32":
-        if sys.version_info < (3, 13):
+        if sys.version_info >= (3, 13):
+            # raises UnsupportedOperation:
+            def owner(self: Never, *, follow_symlinks: bool = True) -> str: ...  # type: ignore[misc]
+            def group(self: Never, *, follow_symlinks: bool = True) -> str: ...  # type: ignore[misc]
+        else:
             def owner(self: Never) -> str: ...  # type: ignore[misc]
             def group(self: Never) -> str: ...  # type: ignore[misc]
     else: