build(deps): bump braze-specification from 27458a7 to c5618cb

Bumps [braze-specification](https://github.com/braze-community/braze-specification) from `27458a7` to `c5618cb`.
- [Release notes](https://github.com/braze-community/braze-specification/releases)
- [Commits](braze-community/braze-specification@27458a7...c5618cb)

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

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