Add CI test to force RRC IDLE and new connection setup with 5G-S-TMSI

Guido Casatirequested to merge
add-ci-ue-rrc-idle-test into develop

This MR is a follow up to !2725 (merged)..

The primary goal is to introduce a CI test that enforces the following behavior:

  1. Forces the UE to enter RRC_IDLE state.
  2. Validates the UE's re-connection procedure using the 5G-S-TMSI as the UE identity.

Merge request reports