As part of the investigation of how to speed up Selenium / Web-based end-to-end tests in CI, we need to know which existing repositories are using Selenium / wdio.

Find all wdio.conf.js or equivalent Selenium configuration files in the mediawiki codebase. and report which extensions have what settings for maxInstances.

Acceptance Criteria

• A list of repositories using Selenium / wdio, and the parallelisation settings for them.