chore(package): update ember-cli-content-security-policy to version 0.6.0 (#1191)

https://greenkeeper.io/

Author: greenkeeper[bot]

package.json

@@ -44,7 +44,7 @@
     "ember-cli-base64": "~0.0.1",
     "ember-cli-blueprint-test-helpers": "~0.14.0",
     "ember-cli-chai": "^0.3.2",
-    "ember-cli-content-security-policy": "~0.5.0",
+    "ember-cli-content-security-policy": "~0.6.0",
     "ember-cli-dependency-checker": "^1.3.0",
     "ember-cli-eslint": "^3.0.2",
     "ember-cli-fastboot": "1.0.0-beta.13",