chore(deps-dev): Bump puppeteer from 19.10.1 to 20.4.0

Bumps [puppeteer](https://github.com/puppeteer/puppeteer) from 19.10.1 to 20.4.0.
- [Release notes](https://github.com/puppeteer/puppeteer/releases)
- [Changelog](https://github.com/puppeteer/puppeteer/blob/main/release-please-config.json)
- [Commits](https://github.com/puppeteer/puppeteer/compare/puppeteer-v19.10.1...puppeteer-v20.4.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

package.json

@@ -162,7 +162,7 @@
     "karma-spec-reporter": "^0.0.36",
     "karma-viewport": "^1.0.9",
     "node-polyfill-webpack-plugin": "^2.0.1",
-    "puppeteer": "^19.10.1",
+    "puppeteer": "^20.4.0",
     "regextras": "^0.8.0",
     "sass": "^1.62.1",
     "sass-loader": "^13.2.2",