Update PR reference on change log

Author: iangmaia

CHANGELOG.md

@@ -8,7 +8,7 @@
 
 - Remove the `skip_glotpress` parameter from the `ios_bump_version_release` action [#443]
 - Remove the `ios_localize_project` and `ios_update_metadata` actions [#447]
-- Remove the `skip_deliver` parameter from `ios_bump_version_hotfix` and `ios_bump_version_release` actions
+- Remove the `skip_deliver` parameter from `ios_bump_version_hotfix` and `ios_bump_version_release` actions [#450]
 
 ### New Features