Security Appliances Market Size, Share, and Industry Analysis, By Type (Firewall, Unified Threat Management (UTM), Intrusion Detection and Prevention (IDP), Content Management, Virtual Private Network (VPN), and Others (Data Loss Prevention)), By Deployment (Cloud and On-premise), By Enterprise Type (Small and Medium Enterprises and Large Enterprises), By Industry (BFSI, Healthcare, IT and Telecom, Retail, Energy and Utilities, Manufacturing, and Others (Government)), and Regional Forecast, 2026-2034