PMM-7 Backup logs after tests (#1230)
PMM-7 Backup logs after tests (#1230)

* PMM-0000 Backup logs after tests

* Update pmm2-ui-tests.groovy

* Update pmm2-ui-tests.groovy

* writing output to the file
Percona-Lab/jenkins-pipelines,Percona-Lab/jenkins-pipelines,Percona-Lab/jenkins-pipelines,Percona-Lab/jenkins-pipelines