Update CHANGELOG.md

Author: jrief

CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## Release history of [django-admin-sortable2](https://github.com/jrief/django-admin-sortable2/)
 
+### 2.2.5
+- Fix sorting in parallel requests.
+- Add support for Python 3.13.
+
 ### 2.2.4
 - Fix: Selected ordering is not always preserved when using "Save as new" in inline admin.