[14.0][saas-template]Addition of groups to prioritize launches. (between jobs)

[gaelTorrecillas]

Hello,

We have a problem with the creation of db with saas. https://github.com/it-projects-llc/saas-addons/issues/134 So we need to launch the second and last job after the database creation job is finished. I use group of queue_job.delay.

[flotho]

Thanks @ilmir-k for requesting the review from @em230418 , I can confirm that it's working in a pre-production environment, validate by our customer

[flotho]

hi @em230418 @ilmir-k , any chance to have a review here ?

[em230418]

Partial applied this PR to this commit https://github.com/it-projects-llc/saas-addons/commit/c858615f8b8e609889eca7aeed741356dfae01a3 Thank you!