This allows finetuning the on: conditions for each workflow and gives a better base for future work where we might want more workflows or more separation between waterbox cores.
Quicknes being in the waterbox workflow made no sense to begin with.
I've also used the cache action to cache the waterbox build which should prevent unnecessary rebuilds and improve speed slightly. I'm not really happy with the way reusable workflows work as they require re-cloning the repository and re-fetching clang, but the alternative would be copy-pasting the waterbox build action everywhere as far as I can tell.
fixes CA2211, CA2215, CA2241, CA2251
silence CA1816 because it's unnecessary
reduce severity of CA2201 because I like the concept but don't wanna fix them all
Morilli