chore(deps): update dependency eslint-plugin-jest to v22.4.0 (#493)

Author: renovate[bot]

package-lock.json

@@ -50,7 +50,7 @@
     "cssnano": "4.1.10",
     "eslint": "5.15.1",
     "eslint-config-wordpress": "2.0.0",
-    "eslint-plugin-jest": "22.3.2",
+    "eslint-plugin-jest": "22.4.0",
     "eslint-plugin-jsx-a11y": "6.2.1",
     "eslint-plugin-react": "7.12.4",
     "eslint-plugin-wordpress": "git://github.com/WordPress-Coding-Standards/eslint-plugin-wordpress.git#1774343f6226052a46b081e01db3fca8793cc9f1",