Bump spec_tests/hed-specification from c69be23 to 38dc2ec

Bumps [spec_tests/hed-specification](https://github.com/hed-standard/hed-specification) from `c69be23` to `38dc2ec`.
- [Release notes](https://github.com/hed-standard/hed-specification/releases)
- [Commits](hed-standard/hed-specification@c69be23...38dc2ec)

---
updated-dependencies:
- dependency-name: spec_tests/hed-specification
  dependency-version: 38dc2ecd2e42a617450529db43a6f73eab0ac4d2
  dependency-type: direct:production
...

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Author: dependabot[bot]