fix(webhook): update webhook endpoint path to include 'post'

router.go

@@ -61,7 +61,7 @@ func SetupRouter() *http.ServeMux {
 // SetupRouter it is served on its own listener (webhook.listenAddr/listenPort),
 // so external applications can be given access to the webhook port without
 // reaching the admin API. Every endpoint configured under webhook.endpoints is
-// reachable as /api/webhook/<name>.
+// reachable as /api/webhook/post/{name}.
 func SetupWebhookRouter() *http.ServeMux {
 	postLog.Info("Setting up webhook routers...")