manifest: Update sdk-connectedhomeip revision (auto-manifest PR)

Automatically created by action-manifest-pr GH action from PR:
nrfconnect/sdk-connectedhomeip#685

Signed-off-by: Nordic Builder <[email protected]>

Author: NordicBuilder

west.yml

@@ -155,7 +155,7 @@ manifest:
     - name: matter
       repo-path: sdk-connectedhomeip
       path: modules/lib/matter
-      revision: b9ffabef417865b481d1d737c6d539ff8dab21a2
+      revision: pull/685/head
       west-commands: scripts/west/west-commands.yml
       submodules:
         - name: nlio