ci: streamline enforcer job and update version requirements - #14142

ci: streamline enforcer job and update version requirements#14142

lqiu96 wants to merge 3 commits into

googleapis:maingoogleapis/google-cloud-java:mainfrom

lqiu96:optimize_enforcer_job_runtimelqiu96/google-cloud-java:optimize_enforcer_job_runtimeCopy head branch name to clipboard