Update relay_pingpong_test.go

Author: futreall

tests/integration/relay_pingpong_test.go

@@ -29,7 +29,7 @@ const (
 
 var doNotTimeout = clienttypes.NewHeight(1, 1111111)
 
-func TestPinPong(t *testing.T) {
+func TestPingPong(t *testing.T) {
 	// custom IBC protocol example
 	// scenario: given two chains,
 	//           with a contract on chain A and chain B