Fix Shelly consumption_types (#106273)

homeassistant/components/shelly/utils.py

@@ -367,7 +367,9 @@ def is_block_channel_type_light(settings: dict[str, Any], channel: int) -> bool:
 def is_rpc_channel_type_light(config: dict[str, Any], channel: int) -> bool:
     """Return true if rpc channel consumption type is set to light."""
     con_types = config["sys"].get("ui_data", {}).get("consumption_types")
-    return con_types is not None and con_types[channel].lower().startswith("light")
+    if con_types is None or len(con_types) <= channel:
+        return False
+    return cast(str, con_types[channel]).lower().startswith("light")
 
 
 def get_rpc_input_triggers(device: RpcDevice) -> list[tuple[str, str]]: