Fixes non async call async_forward_entry_setup

custom_components/nordpool/__init__.py

@@ -197,7 +197,7 @@ async def async_setup(hass: HomeAssistant, config: Config) -> bool:
 async def async_setup_entry(hass: HomeAssistant, entry: ConfigEntry) -> bool:
     """Set up nordpool as config entry."""
     res = await _dry_setup(hass, entry.data)
-    await hass.config_entries.async_forward_entry_setup(entry, "sensor")
+    await hass.config_entries.async_forward_entry_setups(entry, "sensor")
 
     entry.add_update_listener(async_reload_entry)
     return res