Keep multi requests for smartcam devices after a timeout (#1802)

Smartcam devices do not support sending individual requests, but respond always with `PROTOCOL_FORMAT_ERROR
(-40210)`.

This commit forces them to always use the multi-request format for requests even after receiving an error where we would otherwise fallback to individual requests.

kasa/protocols/smartcamprotocol.py

@@ -49,6 +49,8 @@ class SingleRequest:
 class SmartCamProtocol(SmartProtocol):
     """Class for SmartCam Protocol."""
 
+    REQUIRES_MULTIREQUESTS = True
+
     def _get_list_request(
         self, method: str, params: dict | None, start_index: int
     ) -> dict: