chore(deps): update angular-cli monorepo to v21

Author: renovate[bot]

package.json

@@ -86,14 +86,14 @@
     "zone.js": "0.11.8"
   },
   "devDependencies": {
-    "@angular-devkit/build-angular": "12.2.18",
-    "@angular-devkit/core": "12.2.18",
+    "@angular-devkit/build-angular": "21.0.3",
+    "@angular-devkit/core": "21.0.3",
     "@angular-eslint/builder": "12.7.0",
     "@angular-eslint/eslint-plugin": "12.7.0",
     "@angular-eslint/eslint-plugin-template": "12.7.0",
     "@angular-eslint/schematics": "12.7.0",
     "@angular-eslint/template-parser": "12.7.0",
-    "@angular/cli": "12.2.18",
+    "@angular/cli": "21.0.3",
     "@angular/compiler-cli": "12.2.17",
     "@angular/language-service": "12.2.17",
     "@commitlint/cli": "17.6.7",