matter: OTA optimization release note

Added a release not to inform abouta OTA optimization
The imgage transfer time dropped by 15%

Signed-off-by: Adam Maciuga <adam.maciuga@nordicsemi.no>

Author: Adam-Maciuga

doc/nrf/releases_and_maturity/releases/release-notes-changelog.rst

@@ -228,7 +228,11 @@ Gazell
 Matter
 ------
 
-* Updated the :ref:`matter_test_event_triggers_default_test_event_triggers` section with the new Closure Control cluster test event triggers.
+* Updated:
+
+  * The :ref:`matter_test_event_triggers_default_test_event_triggers` section with the new Closure Control cluster test event triggers.
+  * Decreased Matter OTA image transfer time by around 15%.
+
 * Deprecated the secure persistent storage backend enabled with the :option:`CONFIG_NCS_SAMPLE_MATTER_SECURE_STORAGE_BACKEND` Kconfig option.
 
 Matter fork

west.yml

@@ -157,7 +157,7 @@ manifest:
     - name: matter
       repo-path: sdk-connectedhomeip
       path: modules/lib/matter
-      revision: pull/707/head
+      revision: 8276cee2ff38d4cda5ade8f3c9c0ac2182c08dc1
       west-commands: scripts/west/west-commands.yml
       submodules:
         - name: nlio