Upgrade devDepedencies

- `@ember/optional-features` [drop node 8](https://github.com/emberjs/ember-optional-features/blob/master/CHANGELOG.md#boom-breaking-change)
- `ember-cli-pretender` [drop node<10](https://github.com/rwjblue/ember-cli-pretender/blob/master/CHANGELOG.md#v400-2020-10-09)
- `ember-source-channel-url` [ember-cli#169](ember-cli/ember-source-channel-url#169) Drop Node 8, 9, 11, and 13 support

package.json

@@ -40,12 +40,12 @@
     "whatwg-fetch": "^3.4.0"
   },
   "devDependencies": {
-    "@ember/optional-features": "^1.3.0",
-    "@types/ember": "^3.16.0",
-    "@types/ember-data": "^3.16.1",
-    "@types/ember-qunit": "^3.4.9",
-    "@types/ember__test-helpers": "^0.7.11",
-    "@types/qunit": "^2.9.1",
+    "@ember/optional-features": "^2.0.0",
+    "@types/ember": "^3.16.3",
+    "@types/ember-data": "^3.16.9",
+    "@types/ember-qunit": "^3.4.13",
+    "@types/ember__test-helpers": "^1.7.3",
+    "@types/qunit": "^2.11.1",
     "@types/rsvp": "^4.0.3",
     "@typescript-eslint/eslint-plugin": "^2.33.0",
     "@typescript-eslint/parser": "^2.33.0",
@@ -60,17 +60,17 @@
     "ember-cli-fastboot": "^2.2.3",
     "ember-cli-htmlbars": "^5.3.1",
     "ember-cli-inject-live-reload": "^2.0.1",
-    "ember-cli-pretender": "^3.2.0",
+    "ember-cli-pretender": "^4.0.0",
     "ember-cli-typescript-blueprints": "^3.0.0",
     "ember-cli-uglify": "^3.0.0",
     "ember-data": "~3.20.0",
     "ember-disable-prototype-extensions": "^1.1.2",
-    "ember-load-initializers": "^2.1.1",
+    "ember-load-initializers": "^2.1.2",
     "ember-maybe-import-regenerator": "^0.1.6",
     "ember-qunit": "^4.6.0",
-    "ember-resolver": "^8.0.1",
+    "ember-resolver": "^8.0.2",
     "ember-source": "~3.20.3",
-    "ember-source-channel-url": "^2.0.1",
+    "ember-source-channel-url": "^3.0.0",
     "ember-try": "^1.4.0",
     "eslint": "^6.8.0",
     "eslint-plugin-ember": "^8.5.2",
@@ -79,9 +79,9 @@
     "glob": "^7.1.6",
     "lerna-changelog": "^1.0.1",
     "loader.js": "^4.2.3",
-    "mocha": "^8.2.0",
-    "release-it": "~13.6.6",
-    "release-it-lerna-changelog": "^2.3.0",
+    "mocha": "^8.2.1",
+    "release-it": "~14.2.2",
+    "release-it-lerna-changelog": "^3.1.0",
     "typescript": "^3.9.3"
   },
   "engines": {