Blacklist broken Nexus 9 worker from BrowserStack API
Blacklist broken Nexus 9 worker from BrowserStack API

This is the first matching browser for os=Android, os_version=5
and it is broken.

Blacklist it so that it picks another worker instead.

mzgol/testswarm-browserstack,clarkbox/testswarm-browserstack,clarkbox/testswarm-browserstack,mzgol/testswarm-browserstack