revert embroider versions

Author: gossi

test-app/package.json

@@ -38,11 +38,11 @@
     "@ember/optional-features": "^2.0.0",
     "@ember/string": "^3.1.1",
     "@ember/test-helpers": "^2.9.3",
-    "@embroider/compat": "^3.2.0",
-    "@embroider/core": "^3.2.0",
-    "@embroider/macros": "^1.13.0",
-    "@embroider/test-setup": "^3.0.1",
-    "@embroider/webpack": "^3.1.4",
+    "@embroider/compat": "^2.1.1",
+    "@embroider/core": "^2.1.1",
+    "@embroider/macros": "^1.0.0",
+    "@embroider/test-setup": "^1.8.3",
+    "@embroider/webpack": "^2.1.1",
     "@glimmer/component": "^1.1.2",
     "@glimmer/tracking": "^1.1.2",
     "broccoli-asset-rev": "^3.0.0",