manifest: Update sdk-find-my revision (auto-manifest PR)

Automatically created by action-manifest-pr GH action from PR:
nrfconnect/sdk-find-my#449

Signed-off-by: Nordic Builder <pylon@nordicsemi.no>

Author: NordicBuilder

west.yml

@@ -183,7 +183,7 @@ manifest:
           compare-by-default: false
     - name: find-my
       repo-path: sdk-find-my
-      revision: 161beb81ca24c8c5e1f3efb5fde82ac1b853610b
+      revision: pull/449/head
       groups:
         - find-my
     - name: azure-sdk-for-c