fix(@angular/cli): handle unscoped authentication details in .npmrc files

Unless auth options are scope with the registry url it appears that npm-registry-fetch ignores them, even though they are documented.
https://github.com/npm/npm-registry-fetch/blob/8954f61d8d703e5eb7f3d93c9b40488f8b1b62ac/README.md
https://github.com/npm/npm-registry-fetch/blob/8954f61d8d703e5eb7f3d93c9b40488f8b1b62ac/auth.js#L45-L91

Author: alan-agius4

packages/angular/cli/src/commands/update/schematic/index.ts

@@ -11,7 +11,10 @@ import { Rule, SchematicContext, SchematicsException, Tree } from '@angular-devk
 import * as npa from 'npm-package-arg';
 import * as semver from 'semver';
 import { Dependency, JsonSchemaForNpmPackageJsonFiles } from '../../../../utilities/package-json';
-import { NpmRepositoryPackageJson, getNpmPackageJson } from '../../../../utilities/package-metadata';
+import {
+  NpmRepositoryPackageJson,
+  getNpmPackageJson,
+} from '../../../../utilities/package-metadata';
 import { Schema as UpdateSchema } from './schema';
 
 type VersionRange = string & { __VERSION_RANGE: void };

packages/angular/cli/utilities/package-metadata.ts

@@ -149,6 +149,19 @@ function readOptions(
         }
 
         switch (key) {
+          // Unless auth options are scope with the registry url it appears that npm-registry-fetch ignores them,
+          // even though they are documented.
+          // https://github.com/npm/npm-registry-fetch/blob/8954f61d8d703e5eb7f3d93c9b40488f8b1b62ac/README.md
+          // https://github.com/npm/npm-registry-fetch/blob/8954f61d8d703e5eb7f3d93c9b40488f8b1b62ac/auth.js#L45-L91
+          case '_authToken':
+          case 'token':
+          case 'username':
+          case 'password':
+          case '_auth':
+          case 'auth':
+            options['forceAuth'] ??= {};
+            options['forceAuth'][key] = substitutedValue;
+            break;
           case 'noproxy':
           case 'no-proxy':
             options['noProxy'] = substitutedValue;