chore(deps)(deps): bump primeng from 19.1.3 to 20.3.0 in /code/frontend

Bumps [primeng](https://github.com/primefaces/primeng/tree/HEAD/packages/primeng) from 19.1.3 to 20.3.0.
- [Release notes](https://github.com/primefaces/primeng/releases)
- [Changelog](https://github.com/primefaces/primeng/blob/master/CHANGELOG.md)
- [Commits](https://github.com/primefaces/primeng/commits/20.3.0/packages/primeng)

---
updated-dependencies:
- dependency-name: primeng
  dependency-version: 20.3.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

code/frontend/package-lock.json

@@ -24,7 +24,7 @@
     "@primeng/themes": "^19.1.3",
     "primeflex": "^4.0.0",
     "primeicons": "^7.0.0",
-    "primeng": "^19.1.3",
+    "primeng": "^20.3.0",
     "rxjs": "~7.8.0",
     "tslib": "^2.3.0",
     "zone.js": "~0.15.0"