test: fix failed name resolution test for some envs

Under certain network conditions it is possible that getaddrinfo() will
return EAI_AGAIN rather than EAI_NONAME for an unknown host.

It can be easily reproduced when a network interface is down, however it
is not the only case when EAI_AGAIN appears. It seems some DNS servers
may report a temporary failure in case of an unknown hostname (at least
it looks so, I am unable re-check now).

Author: Totktonada

test/CreateTest.php

@@ -42,7 +42,7 @@ public function test_01_01_double_disconnect() {
 
 		/**
 		 * @expectedException TarantoolException
-		 * @expectedExceptionMessageRegExp /Name or service not known|nodename nor servname provided/
+		 * @expectedExceptionMessageRegExp /Name or service not known|nodename nor servname provided|Temporary failure in name resolution/
 		 */
 		public function test_02_create_error_host() {
 			(new Tarantool('very_bad_host'))->connect();