chore(deps-dev): bump @wdio/browserstack-service from 9.0.7 to 9.2.1

Bumps [@wdio/browserstack-service](https://github.com/webdriverio/webdriverio/tree/HEAD/packages/wdio-browserstack-service) from 9.0.7 to 9.2.1.
- [Release notes](https://github.com/webdriverio/webdriverio/releases)
- [Changelog](https://github.com/webdriverio/webdriverio/blob/main/CHANGELOG.md)
- [Commits](https://github.com/webdriverio/webdriverio/commits/v9.2.1/packages/wdio-browserstack-service)

---
updated-dependencies:
- dependency-name: "@wdio/browserstack-service"
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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