update chrome-launcher so it includes support for getChromeLauncher, which makes it easier to take advantage of chrome-launcher's cross-platform search for a chrome executable but you only need the path, not an actual launched Chrome.

e.g. with puppeteer:

const browser = await puppeteer.launch({
  headless: false,
  executablePath: chromeLauncher.getChromePath(),
});

or on the command line (via the print-chrome-path bin): CHROME_PATH="$(npm exec print-chrome-path)"