message: Simplify changelog.js by using `Intl.ListFormat`
diff: @@ -6,6 +6,7 @@ config();
  const REPO = 'FormidableLabs/urql';
  const SEE_LINE = /^See:\s*(.*)/i;
  const TRAILING_CHAR = /[.;:]$/g;
  +const listFormatter = new Intl.ListFormat('en-US');
  const getSummaryLines = cs => {
  const lines = cs.summary
  @@ -34,9 +35,7 @@ const templateSeeRef = links => {
  const size = humanReadableLinks.length;
  if (size === 0) return '';
  - const str = size > 2
  - ? humanReadableLinks.map((x, i) => i === size - 1 ? `and ${x}` : x).join(', ')
  - : humanReadableLinks.join(' and ');
  + const str = listFormatter.format(humanReadableLinks);
  return `(See ${str})`;
  };
  