Switching from pyenv to uv

Premise The 0.4.0 release of uv does everything I currently do with pip, pyenv, pipx, pip-tools, and pipdeptree. Because of that, I'm in the process of switching to uv. This blog post covers switching from pyenv to uv. History 2024-08-29: Initial writing. 2024-09-12: Minor updates and publishing. 2024-09-20: Rename uv-sync (which is confusing) to uv-python-symlink. Start state I'm running Ubuntu…