[automerger skipped] [sts] add @SecurityTest for testing invalid font size scales am: 3a153aec60 -s ours am: ab42d5fa1d -s ours am: c5912f777e -s ours am: e6d2a0685f -s ours

am skip reason: Change-Id I7bdfbccf28f99084230068b388fea94e21892e55 with SHA-1 b2c232422d is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/cts/+/13487690

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: If1b42268d22c04be0a9f9f26e851b5d58d6a5053