[automerger skipped] Migrate clang-version-inc.py to python3 am: 272f9f5295 -s ours

am skip reason: Merged-In I5bdf726063c6d5281a97debeac9cea47251ecc4d with SHA-1 f16728514b is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/external/clang/+/20227738

Change-Id: If3a904a723a4b7bf26652939c8b58f94741450ef
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>