Refactor HelperGatusToMona to conditionally execute heartbeat and update performance message logic; update project dependencies and configuration models

Models/MonAConfiguration.cs

@@ -3,12 +3,13 @@ using System.Text.Json.Serialization;
 
 namespace Gatus.To.MonA.Models;
 
-public record MonAConfiguration(int Expected,
+public record MonAConfiguration(decimal Expected,
                                 int Minutes,
                                 string Resource,
                                 string Site,
                                 string StateName,
-                                string Suffix) {
+                                string Suffix,
+                                bool Use) {
 
     public override string ToString() {
         string result = JsonSerializer.Serialize(this, MonAConfigurationSourceGenerationContext.Default.MonAConfiguration);