fixup! software/theia: move pinned version to stack/slapos.cfg

keep old versions for python2

also sort versions and remove comments that make it hard to sort
versions and are not so helpful:
 - we can find the dependents of a package by looking in
  *eggs/*/EGG-INFO/requires.txt
 - nowadays, many python packages no longer have setup.py and wheels
  is becoming standard.
12 jobs for 1.0 in 0 seconds
Status Job ID Name Coverage
  External
passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:22:07

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster.Master

passed SlapOS-Master.StandaloneDeploymentScriptTest-Debian.Buster

00:29:10

passed SlapOS.Eggs.UnitTest-Master.Python2

00:17:25

passed SlapOS.Eggs.UnitTest-Master.Python3

00:16:28

passed SlapOS.KVM.ResilienceTest-Master

00:20:44

failed SlapOS.SoftwareReleases.IntegrationTest-Master

06:02:03

passed SlapOS.Theia.ResilienceTest-Master

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster

00:22:36

failed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

14:02:54

passed ERP5.StandaloneDeploymentScriptTest-Debian.Buster

00:26:38

passed Wendelin.StandaloneDeploymentScriptTest-Debian.Buster.Master

11:00:43