chore(deps-dev): bump @wdio/local-runner from 6.1.3 to 6.1.6

Bumps [@wdio/local-runner](https://github.com/webdriverio/webdriverio) from 6.1.3 to 6.1.6.
- [Release notes](https://github.com/webdriverio/webdriverio/releases)
- [Changelog](https://github.com/webdriverio/webdriverio/blob/master/CHANGELOG.md)
- [Commits](webdriverio/webdriverio@v6.1.3...v6.1.6)

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