Update CHANGELOG [skip ci]

Author: tcompa

CHANGELOG.md

@@ -8,8 +8,13 @@
     * Enable workaround to support yx images in Cellpose task (\#789).
     * Fix error handling in `calculate_registration_image_based` (\#799).
     * Fix minor issues with call-signature and type hints in `calculate_registration_image_based` (\#799).
-* Development:
-    * Switch all core models to pydantic v2 (\#790).
+* Core-library and tasks:
+    * Switch all core models to Pydantic V2 (\#793).
+* JSON Schema generation tools:
+    * Move JSON-Schema tools to Pydantic V2 (\#793).
+* Testing:
+    * Remove dependency on `pytest-pretty` (\#793).
+    * Update `manifest_external_packages.yml` GitHub Action so that it installs the current `fractal-tasks-core` (\#793).
 
 # 1.1.0