[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

config/config.json

@@ -12,6 +12,7 @@
         "ReadTimeout": 300,
         "WriteTimeout": 300,
         "MaximumLoginAttempts": 10,
+        "GoroutineHealthThreshold": -1,
         "GoogleDeveloperKey": "",
         "EnableOAuthServiceProvider": false,
         "EnableIncomingWebhooks": true,
@@ -279,4 +280,4 @@
     "DataRetentionSettings": {
         "Enable": false
     }
-}
+}