chore(package): update eslint-config-airbnb-base to version 14.1.0

Closes #17

Author: greenkeeper[bot]

package.json

@@ -25,7 +25,7 @@
     "chai": "^4.1.2",
     "codecov": "^3.0.4",
     "eslint": "^5.2.0",
-    "eslint-config-airbnb-base": "^13.0.0",
+    "eslint-config-airbnb-base": "^14.1.0",
     "eslint-config-prettier": "^3.0.0",
     "eslint-plugin-import": "^2.13.0",
     "eslint-plugin-prettier": "^2.6.2",