build(deps-dev): bump browserstack-local from 1.5.6 to 1.5.9

Bumps [browserstack-local](https://github.com/browserstack/browserstack-local-nodejs) from 1.5.6 to 1.5.9.
- [Release notes](https://github.com/browserstack/browserstack-local-nodejs/releases)
- [Commits](browserstack/browserstack-local-nodejs@v1.5.6...v1.5.9)

---
updated-dependencies:
- dependency-name: browserstack-local
  dependency-version: 1.5.9
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]