chore(deps-dev): bump @angular/compiler-cli in /edc-policy-playground

Bumps [@angular/compiler-cli](https://github.com/angular/angular/tree/HEAD/packages/compiler-cli) from 18.0.3 to 18.0.4.
- [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/18.0.4/packages/compiler-cli)

---
updated-dependencies:
- dependency-name: "@angular/compiler-cli"
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

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

edc-policy-playground/package.json

@@ -36,7 +36,7 @@
     "@angular-eslint/schematics": "18.0.1",
     "@angular-eslint/template-parser": "18.0.1",
     "@angular/cli": "~18.0.3",
-    "@angular/compiler-cli": "^18.0.3",
+    "@angular/compiler-cli": "^18.0.6",
     "@types/jasmine": "~5.1.4",
     "@types/node": "^20.14.9",
     "@typescript-eslint/eslint-plugin": "7.12.0",