Bump puppeteer from 20.8.2 to 21.0.1 in /app/travel_processor (#690)

Bumps [puppeteer](https://github.com/puppeteer/puppeteer) from 20.8.2 to 21.0.1.
- [Release notes](https://github.com/puppeteer/puppeteer/releases)
- [Changelog](https://github.com/puppeteer/puppeteer/blob/main/release-please-config.json)
- [Commits](puppeteer/puppeteer@puppeteer-v20.8.2...puppeteer-v21.0.1)

---
updated-dependencies:
- dependency-name: puppeteer
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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