Autoimmune Disease Testing Market Size, Share & COVID-19 Impact Analysis, By Product Type (Instruments and Reagents & Consumables), By Disease Type (Rheumatoid Arthritis, Systemic Lupus Erythematosus, Scleroderma, Vasculitis, Inflammatory Bowel Disease, and Others), By Test Type (Antinuclear Autoantibody, Rheumatoid Factor, C-Reactive Protein, Anti-Thyroglobulin Antibody, and Others), By End-user (Hospital & Clinics, Diagnostic Centers, and Others), and Regional Forecast, 2026-2034