Bump jest from 21.2.1 to 22.4.3

Bumps [jest](https://github.com/facebook/jest) from 21.2.1 to 22.4.3.
- [Release notes](https://github.com/facebook/jest/releases)
- [Changelog](https://github.com/facebook/jest/blob/master/CHANGELOG.md)
- [Commits](https://github.com/facebook/jest/commits)

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot-support

package.json

@@ -49,7 +49,7 @@
     "eslint-plugin-promise": "^3.6.0",
     "eslint-plugin-standard": "^3.0.1",
     "file-loader": "^1.1.5",
-    "jest": "^21.2.1",
+    "jest": "^22.4.3",
     "jest-vue-preprocessor": "^1.3.1",
     "jsdom": "^11.3.0",
     "less": "^2.7.3",