CMR-6945: Added default value for nil UMM Version from iso19115. (#1237)

* CMR-6945: Added default value for nil UMM Version from iso19115.

* CMR-6945: Fixed a test.

Co-authored-by: siwei xu <Siwei_xu@raytheon.com>

Author: sxu123

system-int-test/test/cmr/system_int_test/ingest/collection_misc_validation_test.clj

@@ -59,9 +59,8 @@
   (testing "Collections with nil versions are rejected"
     (let [concept (data-umm-c/collection-concept {:Version nil} :iso19115)
           response (ingest/ingest-concept concept)]
-      (is (= {:status 422
-              :errors ["Version is required."]}
-             response)))))
+      (is (= 201 
+             (:status response))))))
 
 (deftest field-exceeding-maxlength-warnings
   (testing "Multiple warnings returned for the fields exceeding maxlength allowed"