build(deps): bump braze-specification from 861c82b to 8a086b0

Bumps [braze-specification](https://github.com/braze-community/braze-specification) from `861c82b` to `8a086b0`.
- [Release notes](https://github.com/braze-community/braze-specification/releases)
- [Commits](braze-community/braze-specification@861c82b...8a086b0)

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

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