Bump jest from 21.2.1 to 24.8.0

Bumps [jest](https://github.com/facebook/jest) from 21.2.1 to 24.8.0.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](jestjs/jest@v21.2.1...v24.8.0)

Signed-off-by: dependabot-preview[bot] <support@dependabot.com>

package.json

@@ -32,7 +32,7 @@
         "gulp": "^3.9.1",
         "gulp-babel": "^7.0.0",
         "husky": "^0.14.3",
-        "jest": "^21.2.1",
+        "jest": "^24.8.0",
         "rimraf": "^2.6.2",
         "webpack": "^3.9.1"
     },