refactor(@angular/cli): convert npm-pick-manifest usage from require to import

The removal of require usage supports the eventual shift to an ESM output for the CLI package.

Author: clydin

packages/angular/cli/commands/update-impl.ts

@@ -11,6 +11,7 @@ import { NodeWorkflow } from '@angular-devkit/schematics/tools';
 import { execSync } from 'child_process';
 import * as fs from 'fs';
 import npa from 'npm-package-arg';
+import pickManifest from 'npm-pick-manifest';
 import * as path from 'path';
 import * as semver from 'semver';
 import { PackageManager } from '../lib/config/workspace-schema';
@@ -25,7 +26,6 @@ import { ensureCompatibleNpm, getPackageManager } from '../utilities/package-man
 import {
   PackageIdentifier,
   PackageManifest,
-  PackageMetadata,
   fetchPackageManifest,
   fetchPackageMetadata,
 } from '../utilities/package-metadata';
@@ -37,11 +37,6 @@ import {
 } from '../utilities/package-tree';
 import { Schema as UpdateCommandSchema } from './update';
 
-const pickManifest = require('npm-pick-manifest') as (
-  metadata: PackageMetadata,
-  selector: string,
-) => PackageManifest;
-
 const NG_VERSION_9_POST_MSG = colors.cyan(
   '\nYour project has been updated to Angular version 9!\n' +
     'For more info, please see: https://v9.angular.io/guide/updating-to-version-9',

packages/angular/cli/src/typings.d.ts

@@ -0,0 +1,15 @@
+/**
+ * @license
+ * Copyright Google LLC All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+
+declare module 'npm-pick-manifest' {
+  function pickManifest(
+    metadata: import('../utilities/package-metadata').PackageMetadata,
+    selector: string,
+  ): import('../utilities/package-metadata').PackageManifest;
+  export = pickManifest;
+}