Upgrade jest-validate -> 23.6.0

Author: ehmicky

package-lock.json

@@ -41,7 +41,8 @@
     "lib": "src"
   },
   "dependencies": {
-    "chalk": "^2.4.1"
+    "chalk": "^2.4.1",
+    "jest-validate": "^23.6.0"
   },
   "devDependencies": {
     "eslint": "^5.7.0",