build(deps): bump braze-specification from 4b640a8 to 10a26bf

Bumps [braze-specification](https://github.com/braze-community/braze-specification) from `4b640a8` to `10a26bf`.
- [Release notes](https://github.com/braze-community/braze-specification/releases)
- [Commits](braze-community/braze-specification@4b640a8...10a26bf)

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

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