Bump web-vitals from 1.1.1 to 2.0.1 in /client (#87)

Bumps [web-vitals](https://github.com/GoogleChrome/web-vitals) from 1.1.1 to 2.0.1.
- [Release notes](https://github.com/GoogleChrome/web-vitals/releases)
- [Changelog](https://github.com/GoogleChrome/web-vitals/blob/main/CHANGELOG.md)
- [Commits](GoogleChrome/web-vitals@v1.1.1...v2.0.1)

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

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Thomas Schaffter <thomas.schaffter@gmail.com>

client/package.json

@@ -15,7 +15,7 @@
     "react-router-dom": "^5.2.0",
     "react-scripts": "4.0.3",
     "typescript": "^4.3.2",
-    "web-vitals": "^1.1.1"
+    "web-vitals": "^2.0.1"
   },
   "scripts": {
     "start": "chmod +x ./env.sh && ./env.sh && cp env-config.js ./public/ && react-scripts start",