Move from PDM to Rye for project management

[leroyvn]

This PR moves project management from PDM to Rye. Underlying motivations are workspace support (in practice allowing to include Joseki as subprojects to other projects with a shared set of dependencies, independent of Joseki's own dependencies) and simpler, faster dependency solving.

Detailed motivation:

• Rye has workspace support. This feature allows including Joseki in other Rye-managed projects for which sharing dependencies is desirable.
• PDM's dependency solver is slow and has very annoying drawbacks in Python's undefined dependency management environment. Rye is faster and more flexible. In particular, Rye's pip-tools-based locking, contrary to PDM's, is not global, but instead focuses only on the active Python version, leading to much less complicated, more reliable and faster dependency solving.
• Rye already has more traction than PDM in the community, despite its very young age (9k stars vs 6k stars).
• Rye's fully integrated approach drastically simplifies setup. You don't even need a working Python distribution to set up the dev environment!

To do:

• Test in a standalone setup (currently only tested as subproject of internal Rayference toolchain: need to see if this can exist alongside local locks)
• Migrate commands (sort of done, check needed)
• Migrate release Action
• Cleanup: Remove Nox and leftover references to PDM
• Update documentation
• Migrate CI Action
• Update version numbering system (add safeguard prior to release that checks if Git tag and package version number are aligned?)