chore(deps): update embroider monorepo to v3

Author: renovate[bot]

docs-app/package.json

@@ -35,9 +35,9 @@
     "@ember/optional-features": "^2.0.0",
     "@ember/string": "^3.0.1",
     "@ember/test-helpers": "^2.8.1",
-    "@embroider/compat": "^2.0.0",
-    "@embroider/core": "^2.0.0",
-    "@embroider/webpack": "^2.0.0",
+    "@embroider/compat": "^3.0.0",
+    "@embroider/core": "^3.0.0",
+    "@embroider/webpack": "^3.0.0",
     "@glimmer/component": "^1.1.2",
     "@glimmer/tracking": "^1.1.2",
     "@glint/core": "^1.0.2",