Update to-test.md for Jetpack 14.1. (#40331)

* Update to-test.md.

* changelog.

* Update projects/plugins/jetpack/to-test.md

Co-authored-by: Brad Jorsch <anomiex@users.noreply.github.com>

---------

Co-authored-by: Brad Jorsch <anomiex@users.noreply.github.com>

Committed via a GitHub action: https://github.com/Automattic/jetpack/actions/runs/12014231626

Upstream-Ref: Automattic/jetpack@d8887f6

CHANGELOG.md

@@ -19,6 +19,7 @@ This is an alpha version! The changes listed here are not final.
 - Forms: Prevent duplicate Salesforce entry submissions
 
 ### Other changes <!-- Non-user-facing changes go here. This section will not be copied to readme.txt. -->
+- Added to-test changes for Jetpack 14.1.
 - Docs: update lists of social networks supported by Publicize, to include all the newer networks.
 - Fixed TS errors following @wordpress/editor update
 - Jetpack AI: Enable transform list to table functionality for all