Integration: `2024.w45`

• !3048 (merged) Cleanup and refactoring at gNB initialization
• !3077 (merged) Address most thread safety issues in NR UE
• !3089 (merged) Improve cross-compile documentation
• !3092 (merged) Remove Interop-F1/Accelleran-CU testing pipeline
• !3096 (merged) Remove x86-specific instructions from telnet server
• !2949 (merged) Better polar decode
• !3070 (merged) CI: Add test with 4 DL layers, 60 MHz BW to SA-2x2 pipeline
• !3098 (merged) nr rlc: hotfix: test allocation valid before use
• !3090 (merged) Add UL PRBs Blacklist section to NR_SA_Tutorial_COTS_UE.md
• !3082 (merged) fix blocking bugs in command nr_dlsim -n100 -e27 -s35 -b 273 -R273 -x4 -y4 -z4
• !3100 (merged) CI: Remove 5g_l2sim files
• !3024 (merged) Set SA mode as default
• !3087 (merged) Remove some usage of the old CI sshConnection class
• !3074 (merged) CI: cleanup of cls_physim.py