fix more tests

Author: DmitriyMusatkin

tests/s3_tester.c

@@ -247,7 +247,8 @@ static void s_s3_test_meta_request_telemetry(
 
     enum aws_s3_request_type request_type;
     aws_s3_request_metrics_get_request_type(metrics, &request_type);
-    if (request_type == AWS_S3_REQUEST_TYPE_GET_OBJECT || request_type == AWS_S3_REQUEST_TYPE_UPLOAD_PART) {
+    if (!aws_s3_request_metrics_get_send_end_timestamp_ns(metrics, &time_stamp) && 
+        (request_type == AWS_S3_REQUEST_TYPE_GET_OBJECT || request_type == AWS_S3_REQUEST_TYPE_UPLOAD_PART)) {
         uint64_t start_time = 0;
         uint64_t end_time = 0;
         uint64_t duration_time = 0;