private List<OnTestLifeCycleRunnable> getDefaultTestLifeCyclePlugins() {
		return ImmutableList.of(new NGrinderWebhookPlugin(webhookService, webhookConfigService));
	}
Notify test finish to plugins.

@param perfTest PerfTest
@param reason   the reason of test finish..
@see OnTestLifeCycleRunnable
ngrinder-controller/src/main/java/org/ngrinder/perftest/service/PerfTestRunnable.java