manifest: Update nRF hw models to latest

Update the HW models module to:
42737c8ec8485987c7c9b0262b136de623e1ded2

Including the following:
42737c8 TIMER: Support devices without TASK_SHUTDOWN nrfx3.9 MDK 8.68
5fe6873 54 UARTE: Add frametimeout functionality
dc086d7 UARTE: Add basic 54 support
b046745 UARTE: Support better not having UART functionality
1c5f58c README: Mention the nRF54L15 models cover the L10 and L05
597c7d0 TEMP: Also build hal replacement for 54 and define NRF_TEMP_NS/S
fb2ca83 Makefile: Let's build libraries (specially HAL) as pic
200a1e3 Makefiles: move some common options to common snippet

Signed-off-by: Alberto Escolar Piedras <alberto.escolar.piedras@nordicsemi.no>