manifest: sdk-connectedhomeip: Fix reliability issues with multicasts

This commit updates the Matter SDK revision to include fixes that
improve the reliability of multicast message delivery by enabling MLDv2
reporting.

Signed-off-by: Łukasz Duda <[email protected]>

doc/nrf/releases_and_maturity/known_issues.rst

@@ -385,6 +385,15 @@ Matter
 
 The issues in this section are related to the :ref:`ug_matter` protocol.
 
+.. rst-class:: v2-7-0 v2-6-2 v2-6-1 v2-6-0 v2-5-3 v2-5-2 v2-5-1 v2-5-0 v2-4-4 v2-4-3 v2-4-2 v2-4-1 v2-4-0
+
+KRKNWK-19524: Reliability issues with multicast message delivery for certain Access Points.
+  Certain Access Points require Wi-Fi devices to send Multicast Listener Discovery version 2 (MLDv2) Report messages for multicast packets to be properly delivered to a given address.
+  Matter over Wi-Fi devices only subscribed to multicast addresses within the internal IPv6 stack, without notifying the Access Points, leading to reliability issues with multicast message delivery.
+
+  **Workaround:** To ensure reliable multicast communication, use the :c:func:`net_ipv6_mld_join` and :c:func:`net_ipv6_mld_leave` functions to explicitly subscribe or unsubscribe to multicast addresses.
+  For reference, see the commit with the fix in the ``sdk-connectedhomeip`` repository (commit hash: ``TBD``).
+
 .. rst-class:: v2-7-0
 
 KRKNWK-19443: The device commissioning window can be opened for longer than 900 seconds, which violates the Matter specification.

west.yml

@@ -161,7 +161,7 @@ manifest:
     - name: matter
       repo-path: sdk-connectedhomeip
       path: modules/lib/matter
-      revision: 5a55d6099f6fdbdebdac9c0d7ea41fcfb751e7f2
+      revision: pull/486/head
       west-commands: scripts/west/west-commands.yml
       submodules:
         - name: nlio