chore(package): update eslint-plugin-ember to version 8.5.0

Closes #73

Author: greenkeeper[bot]

package.json

@@ -65,7 +65,7 @@
     "ember-source-channel-url": "^2.0.1",
     "ember-try": "^0.2.23",
     "eslint-config-bbva": "2.0.3",
-    "eslint-plugin-ember": "^7.0.0",
+    "eslint-plugin-ember": "^8.5.0",
     "eslint-plugin-node": "^9.1.0",
     "husky": "^3.0.4",
     "istanbul": "^0.4.5",