Physical bridge: handle the reconnect count case

Without this, we don't increase the current count and don't escalate in the exponential retry case, so let's both do that and log that something is happening so we can diagnose from the logs.

Author: NickCraver

src/StackExchange.Redis/PhysicalBridge.cs

@@ -685,7 +685,10 @@ internal void OnHeartbeat(bool ifConnectedOnly)
                         }
                         if (!ifConnectedOnly && DueForConnectRetry())
                         {
-                            Multiplexer.Trace("Resurrecting " + ToString());
+                            // Increment count here, so that we don't re-enter in Connecting case up top - we don't want to re-enter and log there.
+                            Interlocked.Increment(ref connectTimeoutRetryCount);
+
+                            Multiplexer.Logger?.LogInformation($"Resurrecting {ToString()} (retry: {connectTimeoutRetryCount})");
                             Multiplexer.OnResurrecting(ServerEndPoint.EndPoint, ConnectionType);
                             TryConnect(null);
                         }