Update dependency ember-cli-htmlbars to v6.3.0

Author: renovate[bot]

package.json

@@ -48,7 +48,7 @@
     "ember-cli-babel": "7.26.11",
     "ember-cli-chai": "0.5.0",
     "ember-cli-dependency-checker": "3.3.1",
-    "ember-cli-htmlbars": "6.2.0",
+    "ember-cli-htmlbars": "6.3.0",
     "ember-cli-inject-live-reload": "2.1.0",
     "ember-disable-prototype-extensions": "1.1.3",
     "ember-load-initializers": "2.1.2",