Incorrect max connection error code and empty reason is reported to the client

[AkbaraliShaikh]

Description
Incorrect max connection error code and empty reason is reported to the client

To Reproduce
Step 1: Set the env variable SERVER_WEBSOCKET_MAX_CONN = 1
Step 2: Create the multiple connections.

Expected vs actual behavior
expected: Code_CODE_MAX_CONNECTION_LIMIT_REACHED
actual: Code_CODE_MAX_USER_LIMIT_REACHED

Expected behavior
When the max connection threshold is reached the client should received the Code_CODE_MAX_USER_LIMIT_REACHED error code and the reason message instead of empty