build(deps): bump braze-specification from 6cb1dd1 to 0a147d2

Bumps [braze-specification](https://github.com/braze-community/braze-specification) from `6cb1dd1` to `0a147d2`.
- [Release notes](https://github.com/braze-community/braze-specification/releases)
- [Commits](braze-community/braze-specification@6cb1dd1...0a147d2)

---
updated-dependencies:
- dependency-name: braze-specification
  dependency-type: direct:production
...

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