fix(@angular-devkit/build-angular): update Angular peer dependencies to 12.2 stable

Only stable versions are officially supported.

Author: clydin

packages/angular_devkit/build_angular/package.json

@@ -77,11 +77,11 @@
     "webpack-subresource-integrity": "1.5.2"
   },
   "peerDependencies": {
-    "@angular/compiler-cli": "^12.0.0 || ^12.2.0-next",
-    "@angular/localize": "^12.0.0 || ^12.2.0-next",
-    "@angular/service-worker": "^12.0.0 || ^12.2.0-next",
+    "@angular/compiler-cli": "^12.0.0",
+    "@angular/localize": "^12.0.0",
+    "@angular/service-worker": "^12.0.0",
     "karma": "^6.3.0",
-    "ng-packagr": "^12.0.0 || ^12.1.0-next",
+    "ng-packagr": "^12.0.0",
     "protractor": "^7.0.0",
     "tailwindcss": "^2.0.0",
     "tslint": "^6.1.0",