Update requirements, python version and dependencies

[ReinierKoops]

This is probably going to be a big PR. It'll involve:

• [x] update requirements
• [x] drop python version 3.8, add python version 3.12
• [x] update pyproject.toml (project management script)
• [x] update Github actions scripts (also add dependabot)
• [x] update precommits
• [x] update test, replace deprecated code, remove/replace deactivated code

Before this can be closed a lot of code is still going to be updated such that it works with latest versions of packages it depends on. For example scikit learn deprecated parts of the code we depend on, so it needs an update.

Things to consider for another PR:

• [ ] (reconsider or better integrate optbinning?)
• [ ] (consider replacing/wrapping parts of the code by other tools who do it better/became new industry standard?)

[ReinierKoops]

@adri0 or @PaulZhutovsky could you perhaps approve it? Now it should work better and allow us to release an updated version.