Replace Incomplete | None = None in third party stubs (#14063)

stubs/defusedxml/defusedxml/ElementTree.pyi

@@ -1,4 +1,3 @@
-from _typeshed import Incomplete
 from collections.abc import Iterator, Sequence
 from typing import Any
 from xml.etree.ElementTree import Element, ElementTree, ParseError as ParseError, XMLParser as _XMLParser, tostring as tostring
@@ -10,7 +9,7 @@ class DefusedXMLParser(_XMLParser):
     def __init__(
         self,
         html=...,
-        target: Incomplete | None = None,
+        target=None,
         encoding: str | None = None,
         forbid_dtd: bool = False,
         forbid_entities: bool = True,

stubs/defusedxml/defusedxml/minidom.pyi

@@ -1,20 +1,15 @@
-from _typeshed import Incomplete
 from xml.dom.minidom import Document
 
 __origin__: str
 
 def parse(
     file,
-    parser: Incomplete | None = None,
+    parser=None,
     bufsize: int | None = None,
     forbid_dtd: bool = False,
     forbid_entities: bool = True,
     forbid_external: bool = True,
 ) -> Document: ...
 def parseString(
-    string: str,
-    parser: Incomplete | None = None,
-    forbid_dtd: bool = False,
-    forbid_entities: bool = True,
-    forbid_external: bool = True,
+    string: str, parser=None, forbid_dtd: bool = False, forbid_entities: bool = True, forbid_external: bool = True
 ) -> Document: ...