Add missing ConfigureAwait.

Author: bgrainger

src/MySqlConnector/Serialization/MySqlSession.cs

@@ -283,7 +283,7 @@ public async Task ResetConnectionAsync(ConnectionSettings cs, IOBehavior ioBehav
 				payload = await ReceiveReplyAsync(ioBehavior, cancellationToken).ConfigureAwait(false);
 				if (payload.HeaderByte == AuthenticationMethodSwitchRequestPayload.Signature)
 				{
-					await SwitchAuthenticationAsync(payload, cs.Password, ioBehavior, cancellationToken);
+					await SwitchAuthenticationAsync(payload, cs.Password, ioBehavior, cancellationToken).ConfigureAwait(false);
 					payload = await ReceiveReplyAsync(ioBehavior, cancellationToken).ConfigureAwait(false);
 				}
 				OkPayload.Create(payload);