[PLT-5465/APIV4] GET /system/health - Improve ping health check to have limits (#6331)

* implement PLT-5465 - Improve ping health check to have limits

* update /ping and delete /health

* remove permission check

i18n/en.json

@@ -6234,5 +6234,9 @@
   {
     "id": "wsapi.webrtc.init.debug",
     "translation": "Initializing webrtc WebSocket API routes"
+  },
+  {
+    "id": "api.system.go_routines",
+    "translation": "The number of running goroutines is over the health threshold %v of %v"
   }
 ]