Update target server

Update target server from static URL to a configured Apigee Target Server

Author: samuel-hollow1-nhsd

proxies/live/apiproxy/targets/target.xml

@@ -21,10 +21,9 @@
     </FaultRule>
   </FaultRules>
   <HTTPTargetConnection>
-      <!--TODO: The target needs to configured on a per enironment basis (NPA-1979)
-          This URL will also need to change once we have DNS in place (NPA-1669)
-      -->
-      <URL>https://6e6ljoc1a5.execute-api.eu-west-2.amazonaws.com/default/api</URL>
+      <LoadBalancer>
+          <Server name="validated-relationships-service-api"/>
+      </LoadBalancer>
       <Properties>
           <Property name="supports.http10">true</Property>
           <Property name="request.retain.headers">User-Agent,Referer,Accept-Language</Property>