Bump ropes from 05db0b8 to 6b42fad (#2329)

Bumps [ropes](https://github.com/minetest-mods/ropes) from `05db0b8` to `6b42fad`.
- [Release notes](https://github.com/minetest-mods/ropes/releases)
- [Commits](minetest-mods/ropes@05db0b8...6b42fad)

---
updated-dependencies:
- dependency-name: ropes
  dependency-type: direct:production
...

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