Use run() from cli-argv-util to test cli

package.json

@@ -82,15 +82,15 @@
    },
    "dependencies": {
       "chalk": "~5.3",
-      "cli-argv-util": "~1.1",
+      "cli-argv-util": "~1.2",
       "fancy-log": "~2.0",
       "slash": "~5.1"
    },
    "devDependencies": {
       "@types/fancy-log": "~2.0",
       "@types/node": "~20.4",
-      "@typescript-eslint/eslint-plugin": "~5.61",
-      "@typescript-eslint/parser": "~5.61",
+      "@typescript-eslint/eslint-plugin": "~6.0",
+      "@typescript-eslint/parser": "~6.0",
       "add-dist-header": "~1.1",
       "assert-deep-strict-equal": "~1.1",
       "copy-file-util": "~1.1",

spec/mocha.spec.js

@@ -3,7 +3,7 @@
 
 // Imports
 import { assertDeepStrictEqual } from 'assert-deep-strict-equal';
-import { execSync } from 'node:child_process';
+import { cliArgvUtil } from 'cli-argv-util';
 import { revWebAssets } from 'rev-web-assets';
 import assert from 'assert';
 import fs from     'fs';
@@ -150,11 +150,7 @@ describe('Correct error is thrown', () => {
 
 ////////////////////////////////////////////////////////////////////////////////
 describe('Executing the CLI', () => {
-   const run = (posix) => {
-      const name =    Object.keys(pkg.bin).sort()[0];
-      const command = process.platform === 'win32' ? posix.replaceAll('\\ ', '" "') : posix;
-      return execSync(command.replace(name, 'node bin/cli.js'), { stdio: 'inherit' });
-      };
+   const run = (posix) => cliArgvUtil.run(pkg, posix);
 
    it('with basic parameters creates the expected new menu file', () => {
       run('copy-folder --cd=spec/fixtures/source subfolder --ext=.css ../target/cli');