chore(package): update eslint-config-standard to version 12.0.0

Author: greenkeeper[bot]

package.json

@@ -29,7 +29,7 @@
     "coveralls": "^3.0.2",
     "editorconfig-tools": "^0.1.1",
     "eslint": "^5.0.0",
-    "eslint-config-standard": "^11.0.0",
+    "eslint-config-standard": "^12.0.0",
     "eslint-plugin-import": "^2.10.0",
     "eslint-plugin-node": "^7.0.0",
     "eslint-plugin-promise": "^4.0.0",