Bump web-vitals from 4.1.1 to 4.2.1 in /app (#1151)

Bumps [web-vitals](https://github.com/GoogleChrome/web-vitals) from 4.1.1 to 4.2.1.
- [Changelog](https://github.com/GoogleChrome/web-vitals/blob/main/CHANGELOG.md)
- [Commits](GoogleChrome/web-vitals@v4.1.1...v4.2.1)

---
updated-dependencies:
- dependency-name: web-vitals
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

app/package.json

@@ -22,7 +22,7 @@
     "react-syntax-highlighter": "^15.5.0",
     "swagger-ui-react": "=5.17.14",
     "use-interval": "^1.4.0",
-    "web-vitals": "^4.1.1"
+    "web-vitals": "^4.2.1"
   },
   "scripts": {
     "analyze": "source-map-explorer 'build/assets/*.js'",