Bump puppeteer from 20.9.0 to 21.0.1

Bumps [puppeteer](https://github.com/puppeteer/puppeteer) from 20.9.0 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-v20.9.0...puppeteer-v21.0.1)

---
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

@@ -31,7 +31,7 @@
     "karma-mocha": "^2.0.0",
     "load-grunt-tasks": "^5.1.0",
     "mocha": "^10.0.0",
-    "puppeteer": "^20.1.1",
+    "puppeteer": "^21.0.1",
     "time-grunt": "^2.0.0"
   },
   "dependencies": {