Replace deprecated assertArraySubset
Replace deprecated assertArraySubset

assertArraySubset() is deprecated and will be removed in PHPUnit 9.

Change-Id: I5f3693f111ab713b6be02ddb82b3bad33d21935b

wikimedia/mediawiki-extensions-PageTriage,wikimedia/mediawiki-extensions-PageTriage,wikimedia/mediawiki-extensions-PageTriage