Fixed compiler warnings.

Socket/Handlers/LoggingHandler.cs

@@ -15,11 +15,11 @@ namespace HermesSocketServer.Socket.Handlers
         }
 
 
-        public async Task Execute<T>(WebSocketUser sender, T data, HermesSocketManager sockets)
+        public Task Execute<T>(WebSocketUser sender, T data, HermesSocketManager sockets)
         {
             if (data is not LoggingMessage message || sender.Id == null)
-                return;
-
+                return Task.CompletedTask;
+            
             Action<Exception?, string> logging;
             if (message.Level == HermesLoggingLevel.Trace)
                 logging = _logger.Verbose;
@@ -35,10 +35,11 @@ namespace HermesSocketServer.Socket.Handlers
                 logging = _logger.Fatal;
             else {
                 _logger.Warning("Failed to receive a logging level from client.");
-                return;
+                return Task.CompletedTask;
             }
             
             logging.Invoke(message.Exception, message.Message + $" [ip: {sender.IPAddress}][id: {sender.Id}][name: {sender.Name}][token: {sender.ApiKey}][uid: {sender.UID}]");
+            return Task.CompletedTask;
         }
     }
 }