BleakScanner: fix discover type hints
This fixes matching the overload when the return_adv arg is not
explicitly given.
@@ -175,7 +175,7 @@ class BleakScanner:
@overload
@classmethod
async def discover(
- cls, timeout: float = 5.0, *, return_adv: Literal[False], **kwargs
+ cls, timeout: float = 5.0, *, return_adv: Literal[False] = False, **kwargs
) -> List[BLEDevice]:
...
