chore(package): update eslint-plugin-promise to version 4.1.1

Closes #11

Author: greenkeeper[bot]

package.json

@@ -38,7 +38,7 @@
     "eslint-config-travix": "^4.0.0",
     "eslint-plugin-babel": "^4.0.0",
     "eslint-plugin-import": "^2.0.1",
-    "eslint-plugin-promise": "^3.5.0",
+    "eslint-plugin-promise": "^4.1.1",
     "eslint-plugin-react": "^7.0.1",
     "frint": "^5.2.1",
     "frint-config": "^5.2.1",