Bump undici and @angular-devkit/build-angular in /web-app

Bumps [undici](https://github.com/nodejs/undici) to 6.6.2 and updates ancestor dependency [@angular-devkit/build-angular](https://github.com/angular/angular-cli). These dependencies need to be updated together.


Updates `undici` from 6.2.1 to 6.6.2
- [Release notes](https://github.com/nodejs/undici/releases)
- [Commits](https://github.com/nodejs/undici/compare/v6.2.1...v6.6.2)

Updates `@angular-devkit/build-angular` from 17.1.4 to 17.2.2
- [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/17.1.4...17.2.2)

---
updated-dependencies:
- dependency-name: undici
  dependency-type: indirect
- dependency-name: "@angular-devkit/build-angular"
  dependency-type: direct:development
...

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

web-app/package.json

@@ -23,7 +23,7 @@
     "zone.js": "~0.14.3"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "~17.1.0",
+    "@angular-devkit/build-angular": "~17.2.2",
     "@angular-devkit/core": "~17.1.0",
     "@angular-devkit/schematics": "~17.1.0",
     "@angular-eslint/eslint-plugin": "~17.0.0",