Global Geothermal Drilling Rig Market Size, Share, Opportunities, And Trends By Type (Conventional, Portable), By Drill Bit (Polycrystalline Diamond Compact, Roller Cutting Bit And Others), By End User (District Heating, Power Plants), By Horsepower (Below 900 HP And Above 900 HP), And By Geography - Forecasts From 2025 To 2030