fix legacy mocha tests for node 14

Author: Gaurav0

packages/ember-cli-fastboot/test/fastboot-config-test.js

@@ -24,8 +24,16 @@ describe('FastBoot config', function () {
         app.editPackageJSON((pkg) => {
           delete pkg.devDependencies['ember-fetch'];
           delete pkg.devDependencies['ember-welcome-page'];
+          pkg.dependencies['chalk'] = '^4.1.2';
+          pkg.dependencies['color-name'] = '^1.1.4';
           // needed because @ember-data/store does `FastBoot.require('crypto')`
-          pkg.fastbootDependencies = ['node-fetch', 'path', 'crypto'];
+          pkg.fastbootDependencies = [
+            'node-fetch',
+            'path',
+            'crypto',
+            'chalk',
+            'color-name',
+          ];
         });
         return app.run('npm', 'install');
       })