newsboat: 2.10.2 -> 2.11.1

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

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

These checks were done:

- built on NixOS
- ran `/nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1/bin/newsboat -h` got 0 exit code
- ran `/nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1/bin/newsboat --help` got 0 exit code
- ran `/nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1/bin/newsboat -V` and found version 2.11.1
- ran `/nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1/bin/newsboat -v` and found version 2.11.1
- ran `/nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1/bin/newsboat --version` and found version 2.11.1
- ran `/nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1/bin/newsboat -h` and found version 2.11.1
- ran `/nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1/bin/newsboat --help` and found version 2.11.1
- ran `/nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1/bin/podboat -h` got 0 exit code
- ran `/nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1/bin/podboat --help` got 0 exit code
- ran `/nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1/bin/podboat -h` and found version 2.11.1
- ran `/nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1/bin/podboat --help` and found version 2.11.1
- found 2.11.1 with grep in /nix/store/sijgq2a38x45ada8xzl69s7c6lsiar3c-newsboat-2.11.1
- directory tree listing: https://gist.github.com/b1dad1e84335a691d0ccf4aa357c12ad