Update METADATA for 1.4.0. am: 8cc5fc4798 am: ed06f31303 Original change: https://android-review.googlesource.com/c/platform/external/python/absl-py/+/2871137 Change-Id: Iec13b7ff943e615eff97ad772fa48efc10c64f5b Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>