Minor fix release

• Fixes
  • [CLIENT-1605] An authentication bug was introduced in Go client 5.0.0. As a result, the client may fail to refresh its session token after it expires, requiring the client to be restarted. New connections would then be rejected until the client is restarted. This fix invalidates the Session Token on unsuccessful login, copies token from the connection buffer, and will consider tend interval in session expiration calculations.