debootstrap: 1.0.98 -> 1.0.99

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools.

This update was made based on information from https://repology.org/metapackage/debootstrap/versions.

These checks were done:

- built on NixOS
- /nix/store/nnih8xgijkbs82f7xig7q615m9nm8vbd-debootstrap-1.0.99/bin/debootstrap passed the binary check.
- 1 of 1 passed binary check by having a zero exit code.
- 0 of 1 passed binary check by having the new version present in output.
- found 1.0.99 with grep in /nix/store/nnih8xgijkbs82f7xig7q615m9nm8vbd-debootstrap-1.0.99
- directory tree listing: https://gist.github.com/1c31f499b4a365254573c6c37df9e41c
- du listing: https://gist.github.com/bb42785bdce49536fc4aec7913c57bdf