todo-txt-cli: 2.10 -> 2.11.0

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

This update was made based on information from https://repology.org/metapackage/todo.txt-cli/versions.

These checks were done:

- built on NixOS
- Warning: no binary found that responded to help or version flags. (This warning appears even if the package isn't expected to have binaries.)
- found 2.11.0 with grep in /nix/store/ws0k0b3kcl4j2aainnn8xg1vnx803s9c-todo.txt-cli-2.11.0
- directory tree listing: https://gist.github.com/37dad7ad49e196a469453b0b6a4ddb16