release_notes: update RELEASE_NOTES.md

Remove trailing period from list item to comply with list formatting rules (no periods at end of list items).

Author: sg-doc-holiday[bot]

RELEASE_NOTES.md

@@ -7,7 +7,7 @@ Release notes for event time 2025-12-10T13:44:52Z are listed below.
 
 ## 🚀
 
-- Updated the app connection and AI settings pages for a clearer configuration experience.
+- Updated the app connection and AI settings pages for a clearer configuration experience
 - Added a clear button to the connections dropdown to quickly reset the selected connection.
 - Improved the workflow builder connection selector with clearer typography.
 - Introduced a visual indicator for sensitive actions in the workflow builder.