message: fix: Fix types in ServerInfo message
  Should be integers, not strings.
  Fixes
diff: * _MinorVersion_ \(uint\): Minor version of the server software.
  * _BuildVersion_ \(uint\): Build version of the server software.
  * _MessageVersion_ \(uint\): Message template version of the server software.
  -* _MaxPingTime_ \(unsigned int\): Maximum internal for pings from the client, in milliseconds. If a client takes to longer than this time between sending Ping messages, the server is expected to disconnect.
  +* _MaxPingTime_ \(uint\): Maximum internal for pings from the client, in milliseconds. If a client takes to longer than this time between sending Ping messages, the server is expected to disconnect.
  **Expected Response:**
  @@ -100,10 +100,10 @@ None. Server-To-Client message only.
  "ServerInfo": {
  "Id": 1,
  "ServerName": "Test Server",
  - "MessageVersion": "1",
  - "MajorVersion": "1",
  - "MinorVersion": "0",
  - "BuildVersion": "0",
  + "MessageVersion": 1,
  + "MajorVersion": 1,
  + "MinorVersion": 0,
  + "BuildVersion": 0,
  "MaxPingTime": 100
  }
  }
  