Bump mods/pipeworks from a2ffaa9 to 3189da7

Bumps [mods/pipeworks](https://github.com/mt-mods/pipeworks) from `a2ffaa9` to `3189da7`.
- [Commits](mt-mods/pipeworks@a2ffaa9...3189da7)

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

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