Fixed response header "Access-Control-Allow-Methods" format in integration test

testing/register-test-core/src/main/java/org/opengroup/osdu/register/util/BaseTestTemplate.java

@@ -83,7 +83,7 @@ public abstract class BaseTestTemplate extends TestBase {
         ClientResponse response = descriptor.run(getId(), token);
         deleteResource();
 
-        assertEquals("GET, POST, PUT, DELETE, OPTIONS, HEAD, PATCH", response.getHeaders().getFirst("Access-Control-Allow-Methods"));
+        assertEquals("[GET, POST, PUT, DELETE, OPTIONS, HEAD, PATCH]", response.getHeaders().getFirst("Access-Control-Allow-Methods"));
 
         assertEquals("[origin, content-type, accept, authorization, data-partition-id, correlation-id, appkey]", response.getHeaders().getFirst("Access-Control-Allow-Headers"));