chore(build): use multiScm for Kokoro release builds#1032

daniel-sanche merged 3 commits intomaingoogleapis/python-bigtable:mainfrom

owl-bot-update-lock-5cddfe2fb5019bbf78335bc55f15bc13e18354a56b3ff46e1834f8e540807f05googleapis/python-bigtable:owl-bot-update-lock-5cddfe2fb5019bbf78335bc55f15bc13e18354a56b3ff46e1834f8e540807f05Copy head branch name to clipboard