Bump ember-source from 3.28.1 to 3.28.4 in /smoke-test-app (#783)

Bumps [ember-source](https://github.com/emberjs/ember.js) from 3.28.1 to 3.28.4.
- [Release notes](https://github.com/emberjs/ember.js/releases)
- [Changelog](https://github.com/emberjs/ember.js/blob/v3.28.4/CHANGELOG.md)
- [Commits](emberjs/ember.js@v3.28.1...v3.28.4)

---
updated-dependencies:
- dependency-name: ember-source
  dependency-type: direct:development
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

smoke-test-app/package.json

@@ -39,7 +39,7 @@
     "ember-maybe-import-regenerator": "^0.1.6",
     "ember-qunit": "^4.6.0",
     "ember-resolver": "^8.0.3",
-    "ember-source": "~3.28.1",
+    "ember-source": "~3.28.4",
     "eslint-plugin-ember": "^8.14.0",
     "loader.js": "^4.7.0",
     "qunit-dom": "^1.6.0"

smoke-test-app/yarn.lock

@@ -1427,10 +1427,10 @@
     "@glimmer/interfaces" "^0.54.2"
     "@simple-dom/interface" "^1.4.0"
 
-"@glimmer/vm-babel-plugins@0.80.0":
-  version "0.80.0"
-  resolved "https://registry.yarnpkg.com/@glimmer/vm-babel-plugins/-/vm-babel-plugins-0.80.0.tgz#e9a6b496501eed367b94c928dc48a954830af3b5"
-  integrity sha512-ZW6+L+FzjDZngGj87zn3MRRA/MrchC7Con33mCcI36v8u48maheB351uhQe+fBVU300IfyzNMvAdwdVKS5VIFw==
+"@glimmer/vm-babel-plugins@0.80.3":
+  version "0.80.3"
+  resolved "https://registry.yarnpkg.com/@glimmer/vm-babel-plugins/-/vm-babel-plugins-0.80.3.tgz#434b62172318cac43830d3ac29818cf2c5f111c1"
+  integrity sha512-9ej6xlm5MzHBJ5am2l0dbbn8Z0wJoYoMpM8FcrGMlUP6SPMLWxvxpMsApgQo8u6dvZRCjR3/bw3fdf7GOy0AFw==
   dependencies:
     babel-plugin-debug-macros "^0.3.4"
 
@@ -4658,17 +4658,17 @@ ember-source-channel-url@^2.0.1:
   dependencies:
     got "^8.0.1"
 
-ember-source@~3.28.1:
-  version "3.28.1"
-  resolved "https://registry.yarnpkg.com/ember-source/-/ember-source-3.28.1.tgz#dbd00dde4e5660231c72574589e7705ed8c76b1d"
-  integrity sha512-dPedE1KBNiFllxzS8uiTWCf5Kofd6hrbJCt162UrTfEMZy6Pt4dZrX2kz0Dq/Fi57FrFAYkMM2cuhYCz2dbENw==
+ember-source@~3.28.4:
+  version "3.28.4"
+  resolved "https://registry.yarnpkg.com/ember-source/-/ember-source-3.28.4.tgz#b6ac2b1e369ef533d05164c65078b4ceafdb6390"
+  integrity sha512-s7kVy0E08erAHUTI/8SZZvXt3an/xb2g5K+m4Rybvo8Tr/noMk3lIdtyQkSvmgMZ/BbvoW8spS630sO0/JN4Eg==
   dependencies:
     "@babel/helper-module-imports" "^7.8.3"
     "@babel/plugin-transform-block-scoping" "^7.8.3"
     "@babel/plugin-transform-object-assign" "^7.8.3"
     "@ember/edition-utils" "^1.2.0"
-    "@glimmer/vm-babel-plugins" "0.80.0"
-    babel-plugin-debug-macros "^0.3.3"
+    "@glimmer/vm-babel-plugins" "0.80.3"
+    babel-plugin-debug-macros "^0.3.4"
     babel-plugin-filter-imports "^4.0.0"
     broccoli-concat "^4.2.4"
     broccoli-debug "^0.6.4"