chore(changelog): auto-add entry for PR wailsapp#5286 — ci: run v3 nightly release only on 3pm UTC schedule

Author: github-actions[bot]

v3/UNRELEASED_CHANGELOG.md

@@ -20,6 +20,7 @@ After processing, the content will be moved to the main changelog and this file
 
 ## Changed
 <!-- Changes in existing functionality -->
+- Adjust nightly release schedule to 15:00 UTC in [PR](https://github.com/wailsapp/wails/pull/5286) by @leaanthony
 
 ## Fixed
 <!-- Bug fixes -->