Bump ambience from d98e906 to 1b428c5

Bumps [ambience](https://github.com/minetest-mirrors/ambience) from `d98e906` to `1b428c5`.
- [Commits](minetest-mirrors/ambience@d98e906...1b428c5)

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

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