Fix get_config to send get_config command

Fixes the HomeAssistantClient.get_config method so it actually sends
"get_config" rather than "get_states".

Author: barneysowood

hass_client/client.py

@@ -189,7 +189,7 @@ async def get_states(self) -> list[State]:
 
     async def get_config(self) -> list[Config]:
         """Get dump of the current config in Home Assistant."""
-        return await self.send_command("get_states")
+        return await self.send_command("get_config")
 
     async def get_services(self) -> dict[str, dict[str, Any]]:
         """Get dump of the current services in Home Assistant."""