fix: volume average should be double (#139)

Author: scott-david-walker

FinancialModelingPrepApi/Model/CompanyValuation/CompanyProfileResponse.cs

@@ -14,7 +14,7 @@ public class CompanyProfileResponse
         public double Beta { get; set; }
 
         [JsonPropertyName("volAvg")]
-        public int VolAvg { get; set; }
+        public double VolAvg { get; set; }
 
         [JsonPropertyName("mktCap")]
         public long MktCap { get; set; }