refactor: simplify npm scripts

Author: alexander-akait

src/tasks/package.js

@@ -80,11 +80,11 @@ module.exports = () => {
         'lint:js': 'eslint --cache .',
         lint: 'npm-run-all -l -p "lint:**"',
         'test:only': 'cross-env NODE_ENV=test jest',
-        'test:watch': 'cross-env NODE_ENV=test jest --watch',
+        'test:watch': 'npm run test:only -- --watch',
         'test:coverage':
-          'cross-env NODE_ENV=test jest --collectCoverageFrom="src/**/*.js" --coverage',
+          'npm run test:only -- --collectCoverageFrom="src/**/*.js" --coverage',
         pretest: 'npm run lint',
-        test: 'cross-env NODE_ENV=test npm run test:coverage',
+        test: 'npm run test:coverage',
         prepare: 'npm run build',
         release: 'standard-version',
         defaults: existing.scripts.defaults || 'webpack-defaults',