JOBs' API
- refine https://gitlab.iscpif.fr/gargantext/haskell-gargantext/blob/dev/src/Gargantext/Utils/Jobs.hs and associated moules under Jobs/ to be able to upate/report progress dynamically from within the job as desired by cgenie
- correspondingly adapt job queue test suite to exercise and check the improved progress reporting: https://gitlab.iscpif.fr/gargantext/haskell-gargantext/blob/dev/tests/queue/Main.hs