Fix incrementing reconnection attempts

Author: sierpinskid

Packages/StreamVideo/Runtime/Core/LowLevelClient/ReconnectScheduler.cs

@@ -151,6 +151,7 @@ private void TryScheduleNextReconnectTime()
             }
 
             NextReconnectTime = GetNextReconnectTime();
+            _reconnectAttempts++;
         }
 
         private void OnConnectionStateChanged(ConnectionState previous, ConnectionState current)

Packages/StreamVideo/Runtime/Core/LowLevelClient/WebSockets/BasePersistentWebSocket.cs

@@ -109,7 +109,7 @@ public async Task DisconnectAsync(WebSocketCloseStatus closeStatus, string close
             }
 
             ConnectionState = ConnectionState.Disconnecting;
-            
+
             await OnDisconnectingAsync(closeMessage);
 
             if (WebsocketClient == null)
@@ -342,6 +342,11 @@ private TEvent DeserializeEvent<TDto, TEvent>(string content, out TDto dto)
 
         private void OnReconnectionScheduled()
         {
+            if (!NextReconnectTime.HasValue)
+            {
+                throw new ArgumentNullException(nameof(NextReconnectTime));
+            }
+
             ConnectionState = ConnectionState.WaitToReconnect;
             var timeLeft = NextReconnectTime.Value - TimeService.Time;