build: update ng-packagr to stable

Author: alan-agius4

packages/angular_devkit/build_ng_packagr/package.json

@@ -11,7 +11,7 @@
     "rxjs": "6.5.5"
   },
   "peerDependencies": {
-    "ng-packagr": "^10.0.0-next.0",
+    "ng-packagr": "^10.0.0",
     "tsickle": "~0.38.0"
   },
   "devDependencies": {

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

@@ -22,5 +22,5 @@ export const latestVersions = {
   DevkitBuildNgPackagr: '~0.1000.0-rc.0',
   DevkitBuildWebpack: '~0.1000.0-rc.0',
 
-  ngPackagr: '^10.0.0-next.2',
+  ngPackagr: '^10.0.0',
 };