api: Return object name in the listHypervisorCapabilities API (#6771)

The hypervisorCapabilitiesResponse does not set an object name, returning a null object name instead. This PR adds an object name to the response.

Author: JoaoJandre

api/src/main/java/org/apache/cloudstack/api/response/HypervisorCapabilitiesResponse.java

@@ -63,6 +63,10 @@ public class HypervisorCapabilitiesResponse extends BaseResponse {
     @Param(description = "true if VM snapshots are enabled for this hypervisor")
     private boolean isVmSnapshotEnabled;
 
+    public HypervisorCapabilitiesResponse(){
+        super("hypervisorcapabilities");
+    }
+
     public String getId() {
         return id;
     }