[7.x] [Bazel] Only persist cache and create build invocations in on-merge pipeline (#114035)#114339

kibanamachine merged 2 commits intoelastic:7.xelastic/kibana:7.xfrom

kibanamachine:backport/7.x/pr-114035kibanamachine/kibana:backport/7.x/pr-114035Copy head branch name to clipboard