Build holds a 'master' executor while installers run

[AdamBrousseau]

Expected behaviour:

Shouldn't hold an executor while not doing work

ci-jenkins-pipelines/pipelines/build/common/openjdk_build_pipeline.groovy

Line 601 in 5247c3a

context.node('master') {

Also not sure why only the mac case does a cleanup

ci-jenkins-pipelines/pipelines/build/common/openjdk_build_pipeline.groovy

Line 604 in 5247c3a

case "mac": context.sh 'rm -f workspace/target/*.pkg workspace/target/*.pkg.json workspace/target/*.pkg.sha256.txt'; buildMacInstaller(versionData); break

I guess there's other things that go on in the build*Installer functions that need master so this might not be as straight forward as I thought.

My issue is, I had the installer jobs backing up because some key machines went offline. Which caused a backup on master and blocked all builds once all the executors were full.