Bump @tootallnate/once and @angular/cli in /webapp/frontend

Removes [@tootallnate/once](https://github.com/TooTallNate/once). It's no longer used after updating ancestor dependency [@angular/cli](https://github.com/angular/angular-cli). These dependencies need to be updated together.


Removes `@tootallnate/once`

Updates `@angular/cli` from 13.3.11 to 21.2.0
- [Release notes](https://github.com/angular/angular-cli/releases)
- [Changelog](https://github.com/angular/angular-cli/blob/main/CHANGELOG.md)
- [Commits](https://github.com/angular/angular-cli/compare/13.3.11...v21.2.0)

---
updated-dependencies:
- dependency-name: "@tootallnate/once"
  dependency-version: 
  dependency-type: indirect
- dependency-name: "@angular/cli"
  dependency-version: 21.2.0
  dependency-type: direct:development
...

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

webapp/frontend/package.json

@@ -48,7 +48,7 @@
     },
     "devDependencies": {
         "@angular-devkit/build-angular": "v13-lts",
-        "@angular/cli": "v13-lts",
+        "@angular/cli": "v21-lts",
         "@angular/compiler-cli": "v13-lts",
         "@angular/language-service": "v13-lts",
         "@types/crypto-js": "^4.1.1",