software/theia: Fix resiliency

See merge request !1096
3 jobs for 1.0
Status Job ID Name Coverage
  External
failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python2

failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python3

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master