Bump mods/pipeworks from 171faec to a2ffaa9

Bumps [mods/pipeworks](https://github.com/mt-mods/pipeworks) from `171faec` to `a2ffaa9`.
- [Commits](mt-mods/pipeworks@171faec...a2ffaa9)

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

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