stack/erp5: simplify jsl integration

using link-binary is enough
11 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed Cloudooo.UnitTest-Master

00:07:47

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:32:38

failed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

15:02:26

passed ERP5.StandaloneDeploymentScriptTest-Debian.Stretch

00:27:04

passed SlapOS-Master.StandaloneDeploymentScriptTest-Debian.Buster

00:25:49

passed SlapOS-Master.StandaloneDeploymentScriptTest-Debian.Stretch

00:34:10

passed SlapOS.KVM.ResilienceTest-Master

00:20:31

passed SlapOS.SlapRunner.ResilienceTest-Master

00:22:28

failed SlapOS.SoftwareReleases.IntegrationTest-Master

08:15:09

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:32:18

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Stretch

00:44:42