fix(@schematics/angular): generate pnpm-workspace.yaml with allowBuilds for pnpm projects

Starting in pnpm 11, `strictDepBuilds` is enabled by default and pnpm
fails with `ERR_PNPM_IGNORED_BUILDS` when any dependency in the graph
declares lifecycle build scripts that are not listed in `allowBuilds` in
`pnpm-workspace.yaml`.

(cherry picked from commit 12a7d2a)

Author: alan-agius4

packages/schematics/angular/workspace/files/pnpm-workspace.yaml.template

@@ -0,0 +1,8 @@
+packages:
+  - '.'
+
+allowBuilds:
+  '@parcel/watcher': false
+  esbuild: false
+  lmdb: false
+  msgpackr-extract: false

packages/schematics/angular/workspace/index.ts

@@ -18,7 +18,7 @@ import {
 } from '@angular-devkit/schematics';
 import { execSync } from 'node:child_process';
 import { latestVersions } from '../utility/latest-versions';
-import { Schema as WorkspaceOptions } from './schema';
+import { PackageManager, Schema as WorkspaceOptions } from './schema';
 
 export default function (options: WorkspaceOptions): Rule {
   return () => {
@@ -48,6 +48,9 @@ export default function (options: WorkspaceOptions): Rule {
     return mergeWith(
       apply(url('./files'), [
         options.minimal ? filter((path) => !path.endsWith('editorconfig.template')) : noop(),
+        packageManager !== PackageManager.Pnpm
+          ? filter((path) => !path.endsWith('pnpm-workspace.yaml.template'))
+          : noop(),
         applyTemplates({
           utils: strings,
           ...options,

packages/schematics/angular/workspace/index_spec.ts

@@ -9,7 +9,7 @@
 import { SchematicTestRunner } from '@angular-devkit/schematics/testing';
 import { parse as parseJson } from 'jsonc-parser';
 import { latestVersions } from '../utility/latest-versions';
-import { Schema as WorkspaceOptions } from './schema';
+import { PackageManager, Schema as WorkspaceOptions } from './schema';
 
 describe('Workspace Schematic', () => {
   const schematicRunner = new SchematicTestRunner(
@@ -38,6 +38,17 @@ describe('Workspace Schematic', () => {
         '/tsconfig.json',
       ]),
     );
+    expect(files).not.toContain('/pnpm-workspace.yaml');
+  });
+
+  it('should create pnpm-workspace.yaml with allowBuilds when packageManager is pnpm', async () => {
+    const tree = await schematicRunner.runSchematic('workspace', {
+      ...defaultOptions,
+      packageManager: PackageManager.Pnpm,
+    });
+    expect(tree.exists('/pnpm-workspace.yaml')).toBeTrue();
+    const content = tree.readContent('/pnpm-workspace.yaml');
+    expect(content).toContain('allowBuilds:');
   });
 
   it('should set the name in package.json', async () => {