manifest: Update bsim to version v2.4

Main changes since v2.3:
* Support for immediate RSSI measurements during abort reevaluations
* Several minor improvements in the base components, including
  tolerating better under-setup docker images, improved C++
  compatibility, a new sanity check for problematic user provided
  sim_ids, and other minor improvements.

Note: Like before, bsim remains fully backwards compatible

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