component/tesseract: Workaround for slaprunner paths with double slashs

This is basically the same problem as in 1b291415
(component/ghostscript: Workaround for slaprunner paths with double
slashs, 2021-06-02)
7 jobs for master
Status Job ID Name Coverage
  External
passed ERP5.UnitTest-TesseractDoubleSlash

passed SlapOS.Eggs.UnitTest-Master.Python2

passed SlapOS.Eggs.UnitTest-Master.Python3

passed SlapOS.SlapRunner.ResilienceTest-Master

failed SlapOS.SlapRunner.ResilienceTest-Master.ERP5

failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python2

05:50:53

failed SlapOS.SoftwareReleases.IntegrationTest-Master.Python3

04:23:13