fix(test): correct output path typo in webpack.array.warning fixture

The first compiler entry used `../../outputs/...` which escaped the test
directory and wrote artifacts to the repository root, outside of the
`/test/outputs` paths covered by `.gitignore` and `.prettierignore`.

Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>

Author: bjohansebas

test/fixtures/webpack.array.warning.config.js

@@ -9,7 +9,7 @@ module.exports = [
     entry: './warning.js',
     output: {
       filename: 'bundle.js',
-      path: path.resolve(__dirname, '../../outputs/array-warning/js1'),
+      path: path.resolve(__dirname, '../outputs/array-warning/js1'),
       publicPath: '/static-one/',
     },
     plugins: [