chore: use string literal in `require` for index.js (#1511)
chore: use string literal in `require` for index.js (#1511)

Use string literals for `require` statement in `index.js` so that tools can determine the dependency tree.

puppeteer/puppeteer,puppeteer/puppeteer,GoogleChrome/puppeteer,puppeteer/puppeteer,puppeteer/puppeteer,GoogleChrome/puppeteer,GoogleChrome/puppeteer