Refactor hardware.async_info to return list[HardwareInfo] (#77183)

homeassistant/components/hardware/websocket_api.py

@@ -42,6 +42,6 @@ async def ws_info(
     for platform in hardware_platform.values():
         if hasattr(platform, "async_info"):
             with contextlib.suppress(HomeAssistantError):
-                hardware_info.append(asdict(platform.async_info(hass)))
+                hardware_info.extend([asdict(hw) for hw in platform.async_info(hass)])
 
     connection.send_result(msg["id"], {"hardware": hardware_info})