manifest: Update Zephyr revision

Introduce changes in test-spec.yml in sdk-zephyr repository.

Signed-off-by: Robert Lubos <[email protected]>

Author: rlubos

west.yml

@@ -52,7 +52,7 @@ manifest:
     # https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
     - name: zephyr
       repo-path: sdk-zephyr
-      revision: 5fea58e28976160de860b55d0e7b135462700870
+      revision: 240c7b9a691f6bcee824d1b26a40a368a916bb05
       import:
         # In addition to the zephyr repository itself, NCS also
         # imports the contents of zephyr/west.yml at the above