Bump tools/bids-specification from 05f64ed to 327bece (#396)

Bumps [tools/bids-specification](https://github.com/bids-standard/bids-specification) from `05f64ed` to `327bece`.
- [Release notes](https://github.com/bids-standard/bids-specification/releases)
- [Commits](bids-standard/bids-specification@05f64ed...327bece)

---
updated-dependencies:
- dependency-name: tools/bids-specification
  dependency-type: direct:production
...

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