obs: Update env.sh files

Update according to the .cfg file names in slapos repository.
4 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:33:46

passed ERP5.StandaloneDeploymentScriptTest-Debian.Stretch

01:40:23

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:32:05

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Stretch

00:22:03