offlineimap: 7.1.5 -> 7.2.0

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

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

These checks were done:

- built on NixOS
- ran ‘/nix/store/q1a1p40fy8bhrd28f0fdikqmv7c1vmbl-offlineimap-7.2.0/bin/.offlineimap-wrapped -h’ got 0 exit code
- ran ‘/nix/store/q1a1p40fy8bhrd28f0fdikqmv7c1vmbl-offlineimap-7.2.0/bin/.offlineimap-wrapped --help’ got 0 exit code
- ran ‘/nix/store/q1a1p40fy8bhrd28f0fdikqmv7c1vmbl-offlineimap-7.2.0/bin/.offlineimap-wrapped --version’ and found version 7.2.0
- ran ‘/nix/store/q1a1p40fy8bhrd28f0fdikqmv7c1vmbl-offlineimap-7.2.0/bin/offlineimap -h’ got 0 exit code
- ran ‘/nix/store/q1a1p40fy8bhrd28f0fdikqmv7c1vmbl-offlineimap-7.2.0/bin/offlineimap --help’ got 0 exit code
- ran ‘/nix/store/q1a1p40fy8bhrd28f0fdikqmv7c1vmbl-offlineimap-7.2.0/bin/offlineimap --version’ and found version 7.2.0
- found 7.2.0 with grep in /nix/store/q1a1p40fy8bhrd28f0fdikqmv7c1vmbl-offlineimap-7.2.0
- directory tree listing: https://gist.github.com/7a051af944742639c585d06d827dabea