Update dependency eslint to v5.12.1

Author: renovate-bot

package-lock.json

@@ -47,7 +47,7 @@
     "babel-eslint": "10.0.1",
     "babel-loader": "8.0.5",
     "css-loader": "2.1.0",
-    "eslint": "5.12.0",
+    "eslint": "5.12.1",
     "eslint-config-airbnb": "17.1.0",
     "eslint-plugin-import": "2.14.0",
     "eslint-plugin-jsx-a11y": "6.1.2",