message: fix(jest): add superset-frontend to testRegex
diff: */
  module.exports = {
  - testRegex: '\\/(spec|src|plugins|packages)\\/.*(_spec|\\.test)\\.[jt]sx?$',
  + testRegex:
  + '\\/superset-frontend\\/(spec|src|plugins|packages)\\/.*(_spec|\\.test)\\.[jt]sx?$',
  moduleNameMapper: {
  '\\.(css|less|geojson)$': '<rootDir>/spec/__mocks__/mockExportObject.js',
  '\\.(gif|ttf|eot|png|jpg)$': '<rootDir>/spec/__mocks__/mockExportString.js',
  