fix: pin eslint-config-airbnb to 17.0.0

Author: greenkeeper[bot]

package.json

@@ -38,7 +38,7 @@
     "enzyme": "^3.1.0",
     "enzyme-adapter-react-16": "^1.0.1",
     "eslint": "^5.0.1",
-    "eslint-config-airbnb": "^17.0.0",
+    "eslint-config-airbnb": "17.0.0",
     "eslint-plugin-import": "^2.3.0",
     "eslint-plugin-jsx-a11y": "^6.0.2",
     "eslint-plugin-react": "^7.1.0",