kip: add missing meta block (description, homepage, license, maintainers)

### Instructions Follow the [contribution guide in the Nixpkgs repository](https://github.com/NixOS/nixpkgs/blob/master/pkgs/README.md) and: - [Add an update script](https://github.com/ngi-nix/ngipkgs/issues/new?template=task-drv-update-script.yaml), if it's missing - Add the ngi team in `meta.teams`, if it's not already there: ```nix meta.teams = with lib.teams; [ ngi ]; ``` `pkgs/by-name/kip/package.nix` has no `meta` block. Every package must include at minimum: `meta.description`, `meta.homepage`, `meta.license`, and `meta.maintainers`. Add a `meta` block to the `stdenv.mkDerivation` call in `pkgs/by-name/kip/package.nix`. Verify the license by checking the upstream repository at `https://gitlab.com/arpa2/kip`.