Bump mods/default from bc40ea0 to 8235a67

Bumps [mods/default](https://github.com/minetest-game/default) from `bc40ea0` to `8235a67`.
- [Commits](minetest-game/default@bc40ea0...8235a67)

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

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