Jenkinsfile.buildchain install build-chain tool at runtime (#1808)
Jenkinsfile.buildchain install build-chain tool at runtime (#1808)

* Jenkinsfile.buildchain install build-chain tool at runtime

* Update Jenkinsfile.buildchain

* build-chain version recovered from composite-action file

* Update Jenkinsfile.buildchain
drdaveg/droolsjbpm-build-bootstrap,drdaveg/droolsjbpm-build-bootstrap