Bump puppeteer from 20.1.2 to 20.7.2 (#675)

Bumps [puppeteer](https://github.com/puppeteer/puppeteer) from 20.1.2 to 20.7.2.
- [Release notes](https://github.com/puppeteer/puppeteer/releases)
- [Changelog](https://github.com/puppeteer/puppeteer/blob/main/release-please-config.json)
- [Commits](puppeteer/puppeteer@puppeteer-v20.1.2...puppeteer-v20.7.2)

---
updated-dependencies:
- dependency-name: puppeteer
  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>

package.json

@@ -15,7 +15,7 @@
     "axios": "^1.4.0",
     "esbuild": "^0.17.18",
     "govuk-frontend": "^4.6.0",
-    "puppeteer": "^20.1.2",
+    "puppeteer": "^20.7.2",
     "sass": "^1.62.1"
   }
 }