Add winreg.HKEYType.handle property (#10848)

stdlib/winreg.pyi

@@ -99,3 +99,5 @@ if sys.platform == "win32":
         def Close(self) -> None: ...
         def Detach(self) -> int: ...
         def __hash__(self) -> int: ...
+        @property
+        def handle(self) -> int: ...

tests/stubtest_allowlists/win32.txt

@@ -13,7 +13,6 @@ _winapi.VirtualQuerySize
 ssl.SSLSocket.recvmsg
 ssl.SSLSocket.recvmsg_into
 ssl.SSLSocket.sendmsg
-winreg.HKEYType.handle
 _ctypes.FreeLibrary
 _ctypes.LoadLibrary