WebOb: CacheControl descriptors are always allowed to accept None (#11288)

Author: Daverball

stubs/WebOb/webob/cachecontrol.pyi

@@ -23,7 +23,7 @@ class exists_property:
     def __get__(self, obj: None, type: _Type | None = None) -> Self: ...
     @overload
     def __get__(self, obj: Any, type: _Type | None = None) -> bool: ...
-    def __set__(self, obj: Any, value: bool) -> None: ...
+    def __set__(self, obj: Any, value: bool | None) -> None: ...
     def __delete__(self, obj: Any) -> None: ...
 
 class value_property(Generic[_T, _NoneLiteral]):
@@ -39,11 +39,11 @@ class value_property(Generic[_T, _NoneLiteral]):
     def __get__(self, obj: None, type: _Type | None = None) -> Self: ...
     @overload
     def __get__(self, obj: Any, type: _Type | None = None) -> _T | _NoneLiteral | None: ...
-    def __set__(self, obj: Any, value: _T | Literal[True]) -> None: ...
+    def __set__(self, obj: Any, value: _T | Literal[True] | None) -> None: ...
     def __delete__(self, obj: Any) -> None: ...
 
 class _IntValueProperty(value_property[int, _NoneLiteral]):
-    def __set__(self, obj: Any, value: int) -> None: ...
+    def __set__(self, obj: Any, value: int | None) -> None: ...
 
 class _BaseCacheControl:
     update_dict = UpdateDict