feat(@angular-devkit/build-angular): drop support for TypeScript 4.6 …

…and 4.7

This commit drops support for TypeScript 4.6 and 4.7

BREAKING CHANGE: TypeScript versions older than 4.8.2 are no longer supported.

packages/angular_devkit/build_angular/package.json

@@ -79,7 +79,7 @@
     "ng-packagr": "^15.0.0-next",
     "protractor": "^7.0.0",
     "tailwindcss": "^2.0.0 || ^3.0.0",
-    "typescript": ">=4.6.2 <4.9"
+    "typescript": "~4.8.2"
   },
   "peerDependenciesMeta": {
     "@angular/localize": {