fix deprecated heartbeat check method

Author: ramunasd

AmqpSubscriptionConsumer.php

@@ -49,7 +49,7 @@ public function consume(int $timeout = 0): void
         $signalHandler->beforeSocket();
 
         $heartbeatOnTick = function (AmqpContext $context) {
-            $context->getLibChannel()->getConnection()->getIO()->check_heartbeat();
+            $context->getLibChannel()->getConnection()->checkHeartBeat();
         };
 
         $this->heartbeatOnTick && register_tick_function($heartbeatOnTick, $this->context);

composer.json

@@ -7,7 +7,7 @@
     "license": "MIT",
     "require": {
         "php": "^7.1.3",
-        "php-amqplib/php-amqplib": "^2.8",
+        "php-amqplib/php-amqplib": "^2.10",
         "queue-interop/amqp-interop": "^0.8",
         "queue-interop/queue-interop": "^0.7|^0.8",
         "enqueue/amqp-tools": "^0.9"