fix(@angular/cli): propagate update's force option to package managers

When the CLI update command's `--force` option is used, the underlying package manager will also be executed with its force option. This behavior is especially important with the advent of npm 7 which will fail installation if any peer dependency version ranges are mismatched.

(cherry picked from commit 3d8c16a)

Author: clydin

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

@@ -66,10 +66,11 @@ export class UpdateCommand extends Command<UpdateCommandSchema> {
   private workflow!: NodeWorkflow;
   private packageManager = PackageManager.Npm;
 
-  async initialize() {
+  async initialize(options: UpdateCommandSchema & Arguments) {
     this.packageManager = await getPackageManager(this.context.root);
     this.workflow = new NodeWorkflow(this.context.root, {
       packageManager: this.packageManager,
+      packageManagerForce: options.force,
       // __dirname -> favor @schematics/update from this package
       // Otherwise, use packages from the active workspace (migrations)
       resolvePaths: [__dirname, this.context.root],

packages/angular/cli/commands/update.json

@@ -28,7 +28,7 @@
           }
         },
         "force": {
-          "description": "If false, will error out if installed packages are incompatible with the update.",
+          "description": "Ignore peer dependency version mismatches. Passes the `--force` flag to the package manager when installing packages.",
           "default": false,
           "type": "boolean"
         },