chore(deps): update dependency @embroider/test-setup to v0.50.2

Author: renovate[bot]

package.json

@@ -49,7 +49,7 @@
     "@babel/core": "^7",
     "@ember/optional-features": "2.0.0",
     "@ember/test-helpers": "^2.4.2",
-    "@embroider/test-setup": "^0.43.5",
+    "@embroider/test-setup": "0.50.2",
     "@glimmer/component": "^1.0.4",
     "@glimmer/tracking": "^1.0.4",
     "babel-eslint": "10.1.0",