Monitor model changed to add an optional fanoutEnabled field

Signed-off-by: Riya Saxena <riysaxen@amazon.com>

Author: riysaxen-amzn

src/main/kotlin/org/opensearch/commons/alerting/model/Monitor.kt

@@ -45,7 +45,7 @@ data class Monitor(
     val deleteQueryIndexInEveryRun: Boolean? = false,
     val shouldCreateSingleAlertForFindings: Boolean? = false,
     val owner: String? = "alerting",
-    val fanoutEnabled: Boolean? = true,
+    val fanoutEnabled: Boolean? = true
 ) : ScheduledJob {
 
     override val type = MONITOR_TYPE