tests: run bcakend tests for 50 seconds instead of 60 because this is the point of optimization
tests: run bcakend tests for 50 seconds instead of 60 because this is the point of optimization

storytouch/etherpad-lite,ether/etherpad-lite,ether/etherpad-lite,ether/etherpad-lite,storytouch/etherpad-lite,storytouch/etherpad-lite