Bump aeon_mecha from 2be47a2 to 3da4470 (#89)

Bumps [aeon_mecha](https://github.com/SainsburyWellcomeCentre/aeon_mecha) from `2be47a2` to `3da4470`.
- [Release notes](https://github.com/SainsburyWellcomeCentre/aeon_mecha/releases)
- [Commits](SainsburyWellcomeCentre/aeon_mecha@2be47a2...3da4470)

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

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