Update .upptimerc.yml

Author: favoyang

.upptimerc.yml

@@ -30,6 +30,8 @@ sites:
     url: https://package.openupm.com:443/com.littlebigfun.addressable-importer/-/com.littlebigfun.addressable-importer-0.9.3.tgz
   - name: "[Global] Unity Registry /package-name"
     url: https://packages.unity.com/com.unity.addressables
+  - name: "[Other] UnityNuGet registry"
+    url: https://unitynuget-registry.openupm.com/org.nuget.akka
 
 status-website:
   # Add your custom domain below, or remove the next line if you don't have a domain