Support Yarn's `workspaces` being an object with a `packages` array about syncpack HOT 2 CLOSED

import get from 'lodash.get'
// ...
const getPatternsFromConfig = (fileName: string, propPath: string): string[] | null => {
  // ...
  const propValue = get(config, propPath);
  const isNonEmptyArray = config && propValue && propValue.length > 0;
  return isNonEmptyArray
    ? [process.cwd()].concat(propValue).map((dirPath: string) => join(dirPath, 'package.json'))
    : null;
};
// ...
const getYarnPatterns = () => getPatternsFromConfig('package.json', 'workspaces') || getPatternsFromConfig('package.json', 'workspaces.packages');