For the upcoming 3.9.5 version of the app, we've migrated from ionic 3 to ionic 5: https://tracker.moodle.org/browse/MOBILE-3320

This has caused some changes that affect Behat tests, and we'll use this opportunity to start migrating functionality specific to the app outside of core, as discussed in https://tracker.moodle.org/browse/MDL-68969

However, there is something that cannot be extracted to a plugin because it happens on the initialization script. This script is reading the version name from /config.json, but this url doesn't exist anymore and the version name can be obtained from /assets/env.json instead. It is possible to read the new url and fall back to the previous url in case of failure, making this fix backwards compatible.