MediaLibrary: Fix iOS detection

refs #270
4 jobs for !336 with fix_26_to_27_migration_ios in 8 minutes and 44 seconds
detached
Status Job ID Name Coverage
  Test
passed #460507
amd64 docker
linux

00:04:49

passed #460508
amd64 docker
win32

00:04:58

passed #460511
docker amd64
win64

00:03:45

failed #460509
amd64 docker
win64

00:04:44