[ci][rabbitmq] Increase wait timeout (#3022)
[ci][rabbitmq] Increase wait timeout (#3022)

Rabbitmq can take a long time to start up on the Travis environment
(can take from 1sec to more than 30sec from what I've found), and
unfortunately I went through rabbitmq's logs and haven't found any
obvious explanation for that.

Let's just increase the timeout instead of having the test fail every
other build.
manolama/dd-agent,takus/dd-agent,cberry777/dd-agent,takus/dd-agent,manolama/dd-agent,cberry777/dd-agent,manolama/dd-agent,cberry777/dd-agent,cberry777/dd-agent,takus/dd-agent,manolama/dd-agent,takus/dd-agent,takus/dd-agent,cberry777/dd-agent,manolama/dd-agent