As of MISP version 2.4.151
we introduced a simpler way to handle background jobs without relying in CakeResque as this library is no longer mantained.
For the time being both background jobs backends will be supported, but we plan to phase out the CakeResque one in a near future.
Tip
For RHEL (8) users follow this guide: https://gist.github.com/Wachizungu/1497109c9e73d173953a0efe82810dd4
The new backend requires Supervisor and some extra PHP packages.