software/repman: use jq component

instead of downloading a pre-binary that might not match the architecture
4 jobs for fix/jq-build in 0 seconds
Status Job ID Name Coverage
  External
failed SlapOS.SoftwareReleases.IntegrationTest-Jerome-Python3

04:30:55

failed SlapOS.SoftwareReleases.IntegrationTest-Jerome-WIP

09:53:53

failed SlapOS.SoftwareReleases.IntegrationTest-Jerome-Python3

12:09:41

canceled SlapOS.SoftwareReleases.IntegrationTest-Jerome-Python3