feat: automatically reject the sdk promise for error statuses

[erunion]

🧰 What's being changed?

This updates the SDK so when error HTTP statuses (>=400, <=599) are hit, the promise is automatically rejected.

It will turn the following, unnecessarily verbose code:

readme
  .auth(apiKey)
  .createChangelog({ title, body: body.join('\n'), hidden: true })
  .then(res => {
    if (res.status !== 201) {
      console.error('Error creating Changelog:', res.status, res.statusText);
      process.exit(1);
    }
    return res.json();
  })
  .then(json => {
    console.log('Changelog created!', json._id);
  })
  .catch(err => {
    console.error(err);
    process.exit(1);
  });

Into the following:

readme
  .auth(apiKey)
  .createChangelog({ title, body: body.join('\n'), hidden: true })
  .then(res => res.json())
  .then(json => {
    console.log('Changelog created!', json._id);
  })
  .catch(err => {
    console.error('Error creating Changelog:', err.status, err.statusText);
    process.exit(1);
  });

err in this case, is the full error response from the API request so if you wish to inspect it for JSON content you can do so within the .catch() by doing an await err.json().

Resolves #103

[kanadgupta]

🙌

[kanadgupta]

Huh I've never known about this nock function