Move MOBSF_API_KEY to SAST template for MobSF analyzer
We need to add MOBSF_API_KEY variable to SAST template. Otherwise, MobSF will fail to run. MOBSF_API_KEY is only used for calling the service running inside the container: “http://mobsf:8000/”. In that case, it is safe to store the KEY in SAST template.