component/theia: version up theia 1.42.1

also update related python packages in stack/slapos.cfg
3 jobs for feat/theia-1.42.1 in 0 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  External
passed SlapOS.Eggs.UnitTest-TestRunner1.Python2

00:14:00

passed SlapOS.Eggs.UnitTest-TestRunner1.Python3

00:15:52

failed SlapOS.SoftwareReleases.IntegrationTest-TestRunner1

05:37:22