Update auth-hub primary destination address in yarp.json

Replaced the `Address` value for the `primary` destination in the
`auth-hub` cluster within `yarp.json`. The previous value
(`https://localhost:9090`) was updated to
`http://172.24.12.39:9090`, reflecting a move from a local
development environment to a specific networked environment.
The protocol was also changed from `https` to `http`.

EnvelopeGenerator.Server/EnvelopeGenerator.Server/yarp.json

@@ -30,7 +30,7 @@
       "auth-hub": {
         "Destinations": {
           "primary": {
-            "Address": "https://localhost:9090"
+            "Address": "http://172.24.12.39:9090"
           }
         }
       }