flow: 0.71.0 -> 0.72.0

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

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

These checks were done:

- built on NixOS
- ran ‘/nix/store/sxq54vh13q17bn31lsz9gszx4abr8qcc-flow-0.72.0/bin/flow --help’ got 0 exit code
- ran ‘/nix/store/sxq54vh13q17bn31lsz9gszx4abr8qcc-flow-0.72.0/bin/flow version’ and found version 0.72.0
- found 0.72.0 with grep in /nix/store/sxq54vh13q17bn31lsz9gszx4abr8qcc-flow-0.72.0
- directory tree listing: https://gist.github.com/cf04036cc5756f0589397f496e3e5e87