Update deprecated call
Update deprecated call

```AMQPQueue::declare()``` is now deprecated (see: https://github.com/pdezwart/php-amqp/pull/58 ).

I just updated to the new method.
declareQueue is defined since the 1.0.8 version.
smuuf/celery-php,vtrmantovani/celery-php,vtrmantovani/celery-php,vtrmantovani/celery-php,xbzbing/celery-php,smuuf/celery-php,xbzbing/celery-php,xbzbing/celery-php,smuuf/celery-php