Refactor `AbstractSimpleTransportTestCase` and `MockTransportService` to not use `Version.transportVersion` 
test/framework/src/main/java/org/elasticsearch/transport/AbstractSimpleTransportTestCase.java
if ("fail-to-send-action".equals(action)) {
                            throw failToSendException;
                        } else {
                            sender.sendRequest(connection, action, request, options, handler);
                        }
                    }
                };
            }
        };
        try (MockTransportService serviceC = buildService("TS_C", CURRENT_VERSION, null, Settings.EMPTY, true, true, interceptor)) {
            final CountDownLatch latch = new CountDownLatch(1);
            serviceC.connectToNode(
                serviceA.getLocalDiscoNode(),
                ConnectionProfile.buildDefaultConnectionProfile(Settings.EMPTY),
                new ActionListener<>() {
                    @Override
                    public void onResponse(final Releasable ignored) {
                        latch.countDown();
                    }
                    @Override
                    public void onFailure(final Exception e) {
                        fail(e.getMessage());
                    }
                }
            );
            latch.await();
            final AtomicReference<TransportException> te = new AtomicReference<>();
            final Transport.Connection connection = serviceC.getConnection(nodeA);
            serviceC.sendRequest(
                connection,