Bump @puppeteer/browsers from 1.5.0 to 1.6.0 (#824)

Bumps [@puppeteer/browsers](https://github.com/puppeteer/puppeteer) from 1.5.0 to 1.6.0.
- [Release notes](https://github.com/puppeteer/puppeteer/releases)
- [Changelog](https://github.com/puppeteer/puppeteer/blob/main/release-please-config.json)
- [Commits](puppeteer/puppeteer@v1.5.0...v1.6.0)

---
updated-dependencies:
- dependency-name: "@puppeteer/browsers"
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>