Bump mods/basic_materials from `78a9b38` to `cb71366`

Bumps [mods/basic_materials](https://gitlab.com/VanessaE/basic_materials) from `78a9b38` to `cb71366`.
- [Release notes](https://gitlab.com/VanessaE/basic_materials/tags)
- [Commits](https://gitlab.com/VanessaE/basic_materials/compare/78a9b38f556a42260de3095f259b1b69a57cdbad...cb713668d26843ddd241272e6169aebbffe95833)