manifest: Update sdk-zephyr-testing revision (auto-manifest PR)

Automatically created by Github Action

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

Author: NordicBuilder

west.yml

@@ -72,7 +72,7 @@ manifest:
     # https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
     - name: zephyr
       repo-path: sdk-zephyr-testing
-      revision: 33919fc981c12469ea96f987c23b90bfa5a8ebea
+      revision: pull/12/head
       import:
         # In addition to the zephyr repository itself, NCS also
         # imports the contents of zephyr/west.yml at the above