Update lcm-python/lcm/__init__.pyi

Fix LCM init function not hinting None could be passed

Co-authored-by: nosracd <[email protected]>

lcm-python/lcm/__init__.pyi

@@ -2,7 +2,7 @@ from os import PathLike
 from typing import Callable
 
 class LCM:
-    def __init__(self, provider: str) -> None: ...
+    def __init__(self, provider: str | None = None) -> None: ...
     def fileno(self) -> int: ...
     def handle(self) -> None: ...
     def handle_timeout(self, timeout_millis: int) -> int: ...