manifest: update zephyr and nrfx revisions to have reworked nrfx_timer#24825

mib1-nordic wants to merge 1 commit intonrfconnect:collab-nrfx-4.0nrfconnect/sdk-nrf:collab-nrfx-4.0from

mib1-nordic:nrfx_timer_reworkmib1-nordic/sdk-nrf:nrfx_timer_reworkCopy head branch name to clipboard