chore(package): update eslint to version 6.8.0

Closes #7

Author: greenkeeper[bot]

package.json

@@ -88,7 +88,7 @@
     "babel-plugin-module-resolver": "^3.2.0",
     "babel-plugin-rewire": "^1.2.0",
     "codecov": "^3.3.0",
-    "eslint": "^5.14.1",
+    "eslint": "^6.8.0",
     "eslint-config-standard": "^12.0.0",
     "eslint-plugin-import": "^2.16.0",
     "eslint-plugin-node": "^8.0.1",