manifest: Update sdk-zephyr revision

Update sdk-zephyr revision to pull S2RAM fixes.

Ref: NCSDK-35410

Signed-off-by: Tomasz Chyrowicz <[email protected]>

Author: tomchy

west.yml

@@ -65,7 +65,7 @@ manifest:
     # https://developer.nordicsemi.com/nRF_Connect_SDK/doc/latest/zephyr/guides/modules.html
     - name: zephyr
       repo-path: sdk-zephyr
-      revision: 7d3bd3993600d433ab0653391aee2fa2b4ce3fda
+      revision: pull/3275/head
       import:
         # In addition to the zephyr repository itself, NCS also
         # imports the contents of zephyr/west.yml at the above