Merge "Upgrade the 'aday' script to python3." am: 098584724b

Original change: https://android-review.googlesource.com/c/platform/development/+/2479356

Change-Id: I5d4ac0531f59827d281e6e2f41e9a5df1cb8b2b0
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>