Ability to deploy Thanos Compactor as a CronJob

[Frizlab]

Is your feature request related to a problem? Please describe.

Thanos compactor uses close to no resources, except when actually compacting data. However, AFAIK using thanos-operator the way it is done for now, we have to deploy the compactor as a deployment, hence setting request/limits for the CPU/RAM to the resources used when compactor is doing stuff, which can be quite a waste of resources.

Describe the solution you'd like to see

Allow the ability to deploy Thanos compactor as a CronJob instead of a Deployment.

Describe alternatives you've considered

Losing resources when the compactor does not actually compact anything.

Additional context

None.