Jira - fix attachment empty when optional custom fields are not set (#…

…2354)

(cherry picked from commit 5bc0d34)

deepfence_server/pkg/integration/jira/jira.go

@@ -117,6 +117,15 @@ func (j Jira) SendNotification(ctx context.Context, message []map[string]interfa
 			return err
 		}
 
+		payload = string(finalByte)
+	} else {
+		finalByte, err := json.MarshalIndent(message, "", "  ")
+		if err != nil {
+			log.Error().Msgf(err.Error())
+			span.EndWithErr(err)
+			return err
+		}
+
 		payload = string(finalByte)
 	}