lxqt.qtermwidget: 0.8.0 -> 0.9.0

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

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

These checks were done:

- built on NixOS

- 0 of 0 passed binary check by having a zero exit code.
- 0 of 0 passed binary check by having the new version present in output.
- found 0.9.0 with grep in /nix/store/3xrdwiihv6005a89hg2yz049dwj1yvjk-qtermwidget-0.9.0
- directory tree listing: https://gist.github.com/32846676d9b32d68c711e46efb4b2822
- du listing: https://gist.github.com/08616a507ab3f444a6710fbb666e20dc