Bump web-vitals from 3.5.1 to 4.2.3 in /docs/gremlint

Bumps [web-vitals](https://github.com/GoogleChrome/web-vitals) from 3.5.1 to 4.2.3.
- [Changelog](https://github.com/GoogleChrome/web-vitals/blob/main/CHANGELOG.md)
- [Commits](GoogleChrome/web-vitals@v3.5.1...v4.2.3)

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

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

docs/gremlint/package.json

@@ -13,7 +13,7 @@
     "sharp-router": "^4.1.5",
     "styled-components": "^6.1.0",
     "typescript": "^4.7.3",
-    "web-vitals": "^3.5.1"
+    "web-vitals": "^4.2.3"
   },
   "scripts": {
     "predeploy": "npm run build",