nydusd miss token server query strings in registry backend

[imeoer]

The harbor registry allows user to customize the token server address by TOKEN_SERVICE_URL setting, when user adds some custom query strings to the URL, nydusd does not carry them when requesting token server, which will cause nydusd request token server exception, such as getting 401 status.

We need to investigate where the user-customized query strings is missing in registry backend, possible code location: