Add created field to finding

Will be required to properly map DefectDojo findings into the secureCodeBox v3 Datamodel

Signed-off-by: Jannik Hollenbach <jannik.hollenbach@iteratec.com>

Author: J12934

src/main/java/io/securecodebox/persistence/defectdojo/models/Finding.java

@@ -23,6 +23,7 @@
 import io.securecodebox.persistence.defectdojo.exceptions.DefectDojoPersistenceException;
 import lombok.*;
 
+import java.time.LocalDateTime;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Map;
@@ -92,6 +93,9 @@ public class Finding extends DefectDojoModel {
   @Builder.Default
   List<Long> endpoints = new LinkedList<>();
 
+  @JsonProperty("created")
+  LocalDateTime createdAt;
+
   @JsonProperty("numerical_severity")
   public String getNumericalSeverity() {
     switch (this.severity) {