[automerger skipped] Run geotz_s2storage_tests as unit tests (go/a-unit-tests) am: 273a4834f5 -s ours

am skip reason: Change-Id I1471906c1dfe257a9c87766391e3f752d847bd63 with SHA-1 6b840b222b is in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/packages/modules/GeoTZ/+/13776241

MUST ONLY BE SUBMITTED BY AUTOMERGER

Change-Id: Icd216ded03fc92fc6e8fc854c07b1780c8a25e58