Bump mods/travelnet from d2a1d71 to 6171fb6

Bumps [mods/travelnet](https://github.com/mt-mods/travelnet) from `d2a1d71` to `6171fb6`.
- [Commits](mt-mods/travelnet@d2a1d71...6171fb6)

---
updated-dependencies:
- dependency-name: mods/travelnet
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>