Fix valet

Author: Bre77

tesla_fleet_api/tesla/vehicle/commands.py

@@ -1174,14 +1174,16 @@ async def set_temps(
             )
         )
 
-    async def set_valet_mode(self, on: bool, password: str | int) -> dict[str, Any]:
+    async def set_valet_mode(self, on: bool, password: str | int | None = None) -> dict[str, Any]:
         """Turns on Valet Mode and sets a four-digit passcode that must then be entered to disable Valet Mode."""
+        action = VehicleControlSetValetModeAction(on=on)
+        if password is not None:
+            action.password = str(password)
+
         return await self._sendInfotainment(
             Action(
                 vehicleAction=VehicleAction(
-                    vehicleControlSetValetModeAction=VehicleControlSetValetModeAction(
-                        on=on, password=str(password)
-                    )
+                    vehicleControlSetValetModeAction=action
                 )
             )
         )

tesla_fleet_api/tesla/vehicle/fleet.py

@@ -475,13 +475,16 @@ async def set_temps(
         )
 
     async def set_valet_mode(
-        self, on: bool, password: str | int
+        self, on: bool, password: str | int | None = None
     ) -> dict[str, Any]:
         """Turns on Valet Mode and sets a four-digit passcode that must then be entered to disable Valet Mode."""
+        json_data: dict[str,Any] = {"on": on}
+        if password is not None:
+            json_data["password"] = str(password)
         return await self._request(
             Method.POST,
             f"api/1/vehicles/{self.vin}/command/set_valet_mode",
-            json={"on": on, "password": str(password)},
+            json=json_data,
         )
 
     async def set_vehicle_name(