chore: Migrate python-cloudbuild synth.py from artman to bazel (#12)
chore: Migrate python-cloudbuild synth.py from artman to bazel (#12)

Co-authored-by: Bu Sun Kim <e20aa14702d7e04a52a901b5515eeecef97a5b5f@users.noreply.github.com>
googleapis/python-cloudbuild,googleapis/python-cloudbuild