Bump spec_tests/hed-specification from 7cf62e5 to 19b29fe

Bumps [spec_tests/hed-specification](https://github.com/hed-standard/hed-specification) from `7cf62e5` to `19b29fe`.
- [Release notes](https://github.com/hed-standard/hed-specification/releases)
- [Commits](hed-standard/hed-specification@7cf62e5...19b29fe)

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

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