chore(package): update ember-cli-addon-tests to version 0.11.0

Author: greenkeeper[bot]

package.json

@@ -43,7 +43,7 @@
     "co": "^4.6.0",
     "ember-ajax": "^3.0.0",
     "ember-cli": "~2.15.1",
-    "ember-cli-addon-tests": "^0.10.0",
+    "ember-cli-addon-tests": "^0.11.0",
     "ember-cli-dependency-checker": "^2.0.1",
     "ember-cli-eslint": "^4.1.0",
     "ember-cli-htmlbars": "^2.0.2",