Drop loop kwarg from asyncio.gather call

On Python 3.10 gather does not accept the loop kwarg anymore:

>       res = await asyncio.gather(*requests, loop=loop, return_exceptions=True)
E       TypeError: gather() got an unexpected keyword argument 'loop'

pyfronius/__init__.py

@@ -272,7 +272,6 @@ async def fetch(
         # storage is not necessarily supported by every fronius device
         device_storage=frozenset(["0"]),
         device_inverter=frozenset(["1"]),
-        loop=None,
     ):
         requests = []
         if active_device_info:
@@ -298,7 +297,7 @@ async def fetch(
         for i in device_inverter:
             requests.append(self.current_inverter_data(i))
 
-        res = await asyncio.gather(*requests, loop=loop, return_exceptions=True)
+        res = await asyncio.gather(*requests, return_exceptions=True)
         responses = []
         for result in res:
             if isinstance(result, FroniusError):