Fixed issue that fetching stopped when inverter was deleted

This happend when due to special timing the last inverter was deleted. In that case interverPos was never changed and the fetching process stucked

lib/Hoymiles/src/Hoymiles.cpp

@@ -64,10 +64,9 @@ void HoymilesClass::loop()
                     Serial.println(F("Request device info"));
                     iv->sendDevInfoRequest(_radio.get());
                 }
-
-                if (++inverterPos >= getNumInverters()) {
-                    inverterPos = 0;
-                }
+            }
+            if (++inverterPos >= getNumInverters()) {
+                inverterPos = 0;
             }
 
             _lastPoll = millis();