fix: circular ref error when passing agent

[bodinsamuel]

Overview

When passing an agent to nano, the process of scrubbing and logging breaks because of circular refs.

I have fixed by removing the pointer ref, but an other solution would be to use a deref like flatted The agent should still in the original object cfg.requestDefaults (for the line 380)

Testing recommendations

import https from 'https';
import nano from 'nano';

const httpsAgent = new https.Agent(options);
const registry = nano({
  url: <YOUR_URL>,
  requestDefaults: {
    agent: httpsAgent,
    timeout: 15000,
    headers: {
      'user-agent': 'fdfd',
      'Accept-Encoding': 'deflate, gzip',
      'content-type': 'application/json',
      accept: 'application/json',
    },
  },
});

Checklist

• [x] Code is written and works correctly;
• [ ] Changes are covered by tests;
• [ ] Documentation reflects the changes;

[bodinsamuel]

There is not much activity on this repo so not sure if someone is handling it. cc @glynnbird ☺️