Remove explicit mock-maker-inline configs

[famod]

It's the default now in Mockito 5.

[quarkus-bot]

✔️ The latest workflow run for the pull request has completed successfully.

It should be safe to merge provided you have a look at the other checks in the summary.

[gsmet]

I'm not completely sure I like this change. Are we completely sure they won't change the default in the future to something that doesn't fit our purpose?

[famod]

So I assumed that by upgrading to Mockito 5 we are ok with the default inline mock-maker.
If we want to give it some time to bake (e.g. wait for possible user feedback after 2.17 has been released) then we could revert this now preemptively. Alternatively we'd need to remember this change and only revert on demand.

But eventually I think this change does make sense. DRY, YAGNI, KISS and all that...
I also do think that we rely on certain defaults elsewhere.