fix(package): update toxic-predicate-functions to version 0.4.2

Closes #10

Author: greenkeeper[bot]

package.json

@@ -27,7 +27,7 @@
     "core-js": "^3.0.0",
     "semver": "^6.0.0",
     "shelljs": "^0.8.1",
-    "toxic-predicate-functions": "^0.2.3"
+    "toxic-predicate-functions": "^0.4.2"
   },
   "devDependencies": {
     "eslint": "^5.8.0",