[automerger skipped] RESTRICT AUTOMERGE Update Android TZDB from 2020d to 2020f. [R] am: 9b91caf455 -s ours am: 9da15f77c9 -s ours

am skip reason: subject contains skip directive

Original change: https://googleplex-android-review.googlesource.com/c/platform/system/timezone/+/14100778

Change-Id: Ib7502b7ec0cfe5382a37feeac0dce03515f1b949