chore(deps): stable ember infrastructure

package.json

@@ -44,7 +44,7 @@
     "ember-anchor": "1.0.3",
     "ember-array-helper": "5.1.0",
     "ember-ci": "0.1.4",
-    "ember-cli": "3.28.5",
+    "ember-cli": "4.2.0",
     "ember-cli-app-version": "3.2.0",
     "ember-cli-dependency-checker": "3.2.0",
     "ember-cli-eslint": "5.1.0",
@@ -69,11 +69,11 @@
     "ember-percy": "1.6.0",
     "ember-radio-button": "2.0.1",
     "ember-resolver": "8.0.3",
-    "ember-source": "3.28.8",
+    "ember-source": "4.2.0",
     "ember-source-channel-url": "1.2.0",
     "ember-truth-helpers": "2.1.0",
     "ember-try": "1.4.0",
-    "eslint-plugin-ember": "9.6.0",
+    "eslint-plugin-ember": "10.5.9",
     "eslint-plugin-node": "11.1.0",
     "husky": "1.3.1",
     "loader.js": "4.7.0",
@@ -88,7 +88,7 @@
   ],
   "dependencies": {
     "ember-cli-babel": "^7.1.3",
-    "ember-cli-htmlbars": "^5.0.0",
+    "ember-cli-htmlbars": "^6.0.0",
     "rsvp": "^4.7.0"
   },
   "ember-addon": {