Bump puppeteer from 21.3.4 to 21.3.6

Bumps [puppeteer](https://github.com/puppeteer/puppeteer) from 21.3.4 to 21.3.6.
- [Release notes](https://github.com/puppeteer/puppeteer/releases)
- [Changelog](https://github.com/puppeteer/puppeteer/blob/main/release-please-config.json)
- [Commits](puppeteer/puppeteer@puppeteer-v21.3.4...puppeteer-v21.3.6)

---
updated-dependencies:
- dependency-name: puppeteer
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>