mate.mate-terminal: 1.20.0 -> 1.20.1 (#42485)

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

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

These checks were done:

- built on NixOS
- /nix/store/d64r6l493bv3f6xyxxfw41w1r765lk2q-mate-terminal-1.20.1/bin/mate-terminal passed the binary check.
- /nix/store/d64r6l493bv3f6xyxxfw41w1r765lk2q-mate-terminal-1.20.1/bin/mate-terminal.wrapper passed the binary check.
- /nix/store/d64r6l493bv3f6xyxxfw41w1r765lk2q-mate-terminal-1.20.1/bin/.mate-terminal-wrapped passed the binary check.
- /nix/store/d64r6l493bv3f6xyxxfw41w1r765lk2q-mate-terminal-1.20.1/bin/.mate-terminal.wrapper-wrapped passed the binary check.
- 4 of 4 passed binary check by having a zero exit code.
- 0 of 4 passed binary check by having the new version present in output.
- found 1.20.1 with grep in /nix/store/d64r6l493bv3f6xyxxfw41w1r765lk2q-mate-terminal-1.20.1
- directory tree listing: https://gist.github.com/5e7716c45202939e7965bf76c7f86be7
- du listing: https://gist.github.com/b84bea1f0cc9eb94683e90ab7f4c30d2