chore(deps): bump @angular/common in /edc-policy-playground

Bumps [@angular/common](https://github.com/angular/angular/tree/HEAD/packages/common) from 18.0.6 to 20.1.0.
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/main/CHANGELOG.md)
- [Commits](https://github.com/angular/angular/commits/20.1.0/packages/common)

---
updated-dependencies:
- dependency-name: "@angular/common"
  dependency-version: 20.1.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

edc-policy-playground/package-lock.json

@@ -13,7 +13,7 @@
   "private": true,
   "dependencies": {
     "@angular/animations": "^18.0.6",
-    "@angular/common": "^18.0.6",
+    "@angular/common": "^20.1.0",
     "@angular/core": "^18.0.6",
     "@angular/forms": "^18.0.6",
     "@angular/platform-browser": "^18.0.6",