chore: remove @ngtools/webpack

It was used for SSR unit tests with Karma.

Author: LayZeeDK

package.json

@@ -70,7 +70,6 @@
     "@angular/compiler-cli": "19.1.6",
     "@eslint/js": "^9.20.0",
     "@angular/language-service": "19.1.6",
-    "@ngtools/webpack": "^19.1.7",
     "@nx/angular": "20.4.4",
     "@nx/eslint": "20.4.4",
     "@nx/eslint-plugin": "20.4.4",