Modernize starterkit-ci: uv-based CI, stronger tests, and workflow/dependency automation#9

jpwgnr wants to merge 5 commits into

lhcb:masterlhcb/starterkit-ci:masterfrom

jpwgnr:jpwgnr/update_pre-commit_and_CIjpwgnr/starterkit-ci:jpwgnr/update_pre-commit_and_CICopy head branch name to clipboard