Hygiene: Restore skipped Beta Cluster test
Hygiene: Restore skipped Beta Cluster test

This was skipped due to T185055.  That issue has been at temporarily
remedied and looks likely to reappear only infrequently, if at all. In
the meantime we can reenable this.

Change-Id: Ib921f27d6046f7e600b64cf4ff6a4faf7c6beddc

wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps,wikimedia/mediawiki-services-mobileapps