Follow-up on 19572: Updated Python from 3.13.11 to 3.13.12 added changes-log (#19614)

Follow-up on #19572 
add py3.13.12-changes-log

Author: dpy013

user_docs/en/changes.md

@@ -45,6 +45,7 @@ Please refer to [the developer guide](https://download.nvaccess.org/documentatio
 * The `scons tests` build target has been removed, as it was misleadingly named.
 It only ran the translation string comment check, which is equivalent to `scons checkPot`.
 Use the individual test commands instead: `scons checkPot`, `rununittests.bat`, `runsystemtests.bat`, `runlint.bat`. (#19606, @bramd)
+* Updated Python 3.13.11 to 3.13.12 (#19572, @dpy013)
 
 #### Deprecations