Add core_version_requirement to info.yml to finalize readiness for Drupal 9
Issue #3072993 by mpp, mandclu, zero2one: Add random query parameter
Issue #3073324 by joy29: Drupal 9 Deprecated Code Report
This minor update is primarily to address readiness for Drupal 9, but also adds a random query parameter when testing through the UI, to ensure results aren't cached when comparing the changes of an override.