Autonomous Truck Market Size, Share & Industry Analysis, By Level of Autonomy (Level 1, Level 2, Level 3, and Level 4), By Propulsion Type (IC Engine and Electric), By Truck Type (Light-Duty Trucks, Medium-Duty Trucks, and Heavy-Duty Trucks), By Industry (Manufacturing, Construction & Mining, FMCG, Military, and Others), and Regional Forecasts, 2026-2034