software/galene: add missing dependencies in test egg

See !1008
9 jobs for master in 0 seconds
Status Job ID Name Coverage
  External
passed SlapOS.Eggs.UnitTest-Master.Python2

passed SlapOS.Eggs.UnitTest-Master.Python3

passed SlapOS.SlapRunner.ResilienceTest-Master

00:22:37

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

passed SlapOS.SoftwareReleases.IntegrationTest-Master.Python2

41:53:58

passed SlapOS.Eggs.UnitTest-Master.Python2

00:11:18

passed SlapOS.Eggs.UnitTest-Master.Python3

00:10:18

passed SlapOS.Eggs.UnitTest-Master.Python3

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

00:23:22