解决 npm run dev fails ValidationError Invalid options object

旧语法:

    new CopyWebpackPlugin(
      [
        { from: 'src/xxx.ext', to: 'dist/xxx.ext' },
        { from: 'src/yyy.ext', to: 'dist/yyy.ext' }
      ]
    )

新语法:

    new CopyWebpackPlugin(
      { 
        patterns: [
          { from: 'src/xxx.ext', to: 'dist/xxx.ext' },
          { from: 'src/yyy.ext', to: 'dist/yyy.ext' }
        ]
      }
    )