Add changelog entry for #5638 [ci skip]

Author: OTP Changelog Bot

docs/Changelog.md

@@ -83,6 +83,7 @@ based on merged pull requests. Search GitHub issues and pull requests for smalle
 - Allow configuration of vector tiles base path [#5627](https://github.com/opentripplanner/OpenTripPlanner/pull/5627)
 - Change Transmodel API path to `/otp/transmodel/v3` [#5637](https://github.com/opentripplanner/OpenTripPlanner/pull/5637)
 - Add flexibleArea to GroupStop Quays [#5625](https://github.com/opentripplanner/OpenTripPlanner/pull/5625)
+- Pass-through should override transit-group-priority [#5638](https://github.com/opentripplanner/OpenTripPlanner/pull/5638)
 [](AUTOMATIC_CHANGELOG_PLACEHOLDER_DO_NOT_REMOVE)
 
 ## 2.4.0 (2023-09-13)