pythongh-109782 Update NT os.path.isdir signature

Author: aminalaee

Modules/clinic/posixmodule.c.h

@@ -4912,15 +4912,15 @@ os__path_splitroot_impl(PyObject *module, path_t *path)
 /*[clinic input]
 os._path_isdir
 
-    path: 'O'
+    s: 'O'
 
 Return true if the pathname refers to an existing directory.
 
 [clinic start generated code]*/
 
 static PyObject *
-os__path_isdir_impl(PyObject *module, PyObject *path)
-/*[clinic end generated code: output=00faea0af309669d input=b1d2571cf7291aaf]*/
+os__path_isdir_impl(PyObject *module, PyObject *s)
+/*[clinic end generated code: output=9d87ab3c8b8a4e61 input=c17f7ef21d22d64e]*/
 {
     HANDLE hfile;
     BOOL close_file = TRUE;