Update dependency ember-cli-update to v0.46.6

Author: renovate-bot

package-lock.json

@@ -23,7 +23,7 @@
   },
   "devDependencies": {
     "chai": "^4.1.0",
-    "ember-cli-update": "0.46.5",
+    "ember-cli-update": "0.46.6",
     "eslint": "^6.1.0",
     "eslint-config-sane": "0.8.5",
     "eslint-config-sane-node": "0.2.2",