chore(deps-dev): bump @wdio/browserstack-service from 9.18.1 to 9.20.0 (#1057)

Bumps [@wdio/browserstack-service](https://github.com/webdriverio/webdriverio/tree/HEAD/packages/wdio-browserstack-service) from 9.18.1 to 9.20.0.
- [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/v9.20.0/packages/wdio-browserstack-service)

---
updated-dependencies:
- dependency-name: "@wdio/browserstack-service"
  dependency-version: 9.20.0
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

package.json

@@ -67,7 +67,7 @@
     "@vitest/coverage-v8": "^3.2.4",
     "@vitest/ui": "^3.2.4",
     "@wdio/appium-service": "^9.19.2",
-    "@wdio/browserstack-service": "^9.18.1",
+    "@wdio/browserstack-service": "^9.20.0",
     "@wdio/cli": "^9.19.2",
     "@wdio/local-runner": "^9.19.2",
     "@wdio/sauce-service": "^9.20.0",