build: update latest-versions to 15.1.0-next

Author: alan-agius4

packages/schematics/angular/utility/latest-versions.ts

@@ -15,7 +15,7 @@ export const latestVersions: Record<string, string> & {
   ...require('./latest-versions/package.json')['dependencies'],
 
   // As Angular CLI works with same minor versions of Angular Framework, a tilde match for the current
-  Angular: '^15.0.0-next.0',
+  Angular: '^15.1.0-next.0',
 
   // Since @angular-devkit/build-angular and @schematics/angular are always
   // published together from the same monorepo, and they are both

packages/schematics/angular/utility/latest-versions/package.json

@@ -12,7 +12,7 @@
     "karma-jasmine-html-reporter": "~2.0.0",
     "karma-jasmine": "~5.1.0",
     "karma": "~6.4.0",
-    "ng-packagr": "^15.0.0-next.0",
+    "ng-packagr": "^15.0.0",
     "protractor": "~7.0.0",
     "rxjs": "~7.5.0",
     "tslib": "^2.3.0",