chore(deps): bump @angular/router from 11.0.0 to 11.2.7 in /frontend

Bumps [@angular/router](https://github.com/angular/angular/tree/HEAD/packages/router) from 11.0.0 to 11.2.7.
- [Release notes](https://github.com/angular/angular/releases)
- [Changelog](https://github.com/angular/angular/blob/master/CHANGELOG.md)
- [Commits](https://github.com/angular/angular/commits/11.2.7/packages/router)

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

frontend/package.json

@@ -25,7 +25,7 @@
     "@angular/forms": "~11.0.0",
     "@angular/platform-browser": "~11.2.7",
     "@angular/platform-browser-dynamic": "~11.0.0",
-    "@angular/router": "~11.0.0",
+    "@angular/router": "~11.2.7",
     "@ng-select/ng-select": "^6.1.0",
     "chart.js": "^2.9.4",
     "core-js": "^3.9.1",
@@ -40,7 +40,7 @@
   },
   "devDependencies": {
     "@angular-devkit/build-angular": "~0.1102.5",
-    "@angular/language-service": "~11.2.6",
+    "@angular/language-service": "~11.2.7",
     "@types/jasmine": "~3.6.7",
     "@types/jasminewd2": "~2.0.3",
     "@types/node": "^14.14.35",