Support to withoutRelations param

[trippo]

I think is a good practice to use withoutRelations on job constructor like Laravel job, to prevent relations from being serialized.

withoutRelations doc

Is it possible to include a param to use this functionality?

[brendt]

We're not adding any new features to this package. It's only intended to handle basic jobs, if you need more fine grained control, you should use a dedicated job instead.

[jaspermutsaerts-paqt]

I did not realize there was a discussions tab. (Finding my bearings contributing to open source, only checked Issues)

This makes it clear that my PR #113 won't be accepted. But maybe it's useful for @trippo or anyone else looking, for their own version.