This lets Renovate periodically refresh flake.lock, keeping the
nixpkgs and agru inputs of the development shell up to date.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
Prevents Renovate from proposing "major" updates to the registry-only
calver tags (vYY.MM[.PATCH]), which break further updates and
self-building. See the previous commit for details.
Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>