Update dependency @embroider/webpack to v4.0.9 (#10255)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

package.json

@@ -63,7 +63,7 @@
     "@ember/test-waiters": "3.1.0",
     "@embroider/compat": "3.7.1",
     "@embroider/core": "3.4.20",
-    "@embroider/webpack": "4.0.8",
+    "@embroider/webpack": "4.0.9",
     "@glimmer/component": "2.0.0",
     "@glimmer/tracking": "1.1.2",
     "@mainmatter/ember-api-actions": "0.6.0",