Normalize JSON attributes during update

This change fixes a few issues related to JSON encoding of
FragmentEntity attributes (data leaves). This significantly
improves update performance in cases of partial updates.

- Normalize JSON and order leaves by name when comparing
  data leaves during update operations.
- Update performance test timings.

Issue-ID: CPS-2018
Signed-off-by: danielhanrahan <daniel.hanrahan@est.tech>
Change-Id: Ia764a353bf96c05758827845e1358745247ee237
diff --git a/docs/release-notes.rst b/docs/release-notes.rst
index 7fabfc3..b7f4c4f 100644
--- a/docs/release-notes.rst
+++ b/docs/release-notes.rst
@@ -1,6 +1,6 @@
 .. This work is licensed under a Creative Commons Attribution 4.0 International License.
 .. http://creativecommons.org/licenses/by/4.0
-.. Copyright (C) 2021-2023 Nordix Foundation
+.. Copyright (C) 2021-2024 Nordix Foundation
 
 .. DO NOT CHANGE THIS LABEL FOR RELEASE NOTES - EVEN THOUGH IT GIVES A WARNING
 .. _release_notes:
@@ -43,6 +43,7 @@
 
 Features
 --------
+    - `CPS-2018 <https://jira.onap.org/browse/CPS-2018>`_ Improve performance of CPS update operations.
 
 
 Version: 3.4.1