Adopt uv for dependency management

[surchs]

Goals:

• put dependency list in pyproject.toml
• Create lockfile with uv
• setup dependabot to keep lockfile up to date
• update Docker file to install from lockfile without making uv a direct dependency of the docker image
• update the README to explain how to setup a local dev environment from the lockfile

[surchs]

Blocked by availability of Seb