Bump @angular/common from 20.3.18 to 20.3.25 in /frontend

Bumps [@angular/common](https://github.com/angular/angular/tree/HEAD/packages/common) from 20.3.18 to 20.3.25.
- [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/v20.3.25/packages/common)

---
updated-dependencies:
- dependency-name: "@angular/common"
  dependency-version: 20.3.25
  dependency-type: direct:production
...

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

Author: dependabot[bot]

frontend/package.json

@@ -22,7 +22,7 @@
     "@angular/animations": "^20.3.18",
     "@angular/cdk": "^20.2.14",
     "@angular/cli": "^20.3.21",
-    "@angular/common": "^20.3.18",
+    "@angular/common": "^20.3.25",
     "@angular/compiler": "^20.3.18",
     "@angular/core": "^20.3.18",
     "@angular/forms": "^20.3.18",

frontend/yarn.lock

@@ -314,10 +314,10 @@
     yargs "18.0.0"
     zod "4.1.13"
 
-"@angular/common@^20.3.18":
-  version "20.3.18"
-  resolved "https://registry.yarnpkg.com/@angular/common/-/common-20.3.18.tgz#311dc0658be69f1368db2eeea92ea1b940329975"
-  integrity sha512-M62oQbSTRmnGavIVCwimoadg/PDWadgNhactMm9fgH0eM9rx+iWBAYJk4VufO0bwOhysFpRZpJgXlFjOifz/Jw==
+"@angular/common@^20.3.25":
+  version "20.3.25"
+  resolved "https://registry.yarnpkg.com/@angular/common/-/common-20.3.25.tgz#0f2bd058ec6595cfb4dd6a05601c41cb5cf3cb23"
+  integrity sha512-rnRGcXbjet0DHgkRL4Dqxk21G2T4UypVfiTV/fay58H8w9U89PJ1L6gRmk8B/uyfpii/9r23cBwnpcguQykxYw==
   dependencies:
     tslib "^2.3.0"