Update dependency jest to v22.4.3

Author: renovate-bot

package.json

@@ -34,7 +34,7 @@
     "@types/jest": "22.1.3",
     "@types/redis": "2.8.5",
     "codecov": "3.0.0",
-    "jest": "22.3.0",
+    "jest": "22.4.3",
     "standard": "10.0.3",
     "ts-jest": "22.0.4",
     "tslint": "5.9.1",