PRH test fixes - align simulated Dmaap response to the real one

(real Dmaap response consists of array of escaped event json strings)

Change-Id: I84f1c5ee576b833e40138ce8af8a8558f39e0609
Issue-ID: INT-1100
Signed-off-by: grabinsk <maciej.grabinski@nokia.com>
diff --git a/tests/dcaegen2/prh-testcases/assets/ves-event-missing-field/invalid-ves-event.json b/tests/dcaegen2/prh-testcases/assets/ves-event-missing-field/invalid-ves-event.json
index 2bdc057..dd135f4 100644
--- a/tests/dcaegen2/prh-testcases/assets/ves-event-missing-field/invalid-ves-event.json
+++ b/tests/dcaegen2/prh-testcases/assets/ves-event-missing-field/invalid-ves-event.json
@@ -1,18 +1,16 @@
-[
-  {
-    "event": {
-      "commonEventHeader": {
-        "sourceName": ""
-      },
-      "pnfRegistrationFields": {
-        "oamV4IpAddress": "10.18.123.236",
-        "oamV6IpAddress": "2001:0db8:85a3:0000:0000:8a2a:0370:7334",
-        "serialNumber": "",
-        "vendorName": "",
-        "modelNumber": "",
-        "unitType": "",
-        "additionalFields": {}
-      }
+{
+  "event": {
+    "commonEventHeader": {
+      "sourceName": ""
+    },
+    "pnfRegistrationFields": {
+      "oamV4IpAddress": "10.18.123.236",
+      "oamV6IpAddress": "2001:0db8:85a3:0000:0000:8a2a:0370:7334",
+      "serialNumber": "",
+      "vendorName": "",
+      "modelNumber": "",
+      "unitType": "",
+      "additionalFields": {}
     }
   }
-]
\ No newline at end of file
+}
\ No newline at end of file