Update dependency @embroider/macros to v1.19.6 (#325)

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

Author: renovate[bot]

package.json

@@ -49,7 +49,7 @@
     "@ember/optional-features": "2.3.0",
     "@ember/string": "4.0.1",
     "@ember/test-helpers": "5.4.1",
-    "@embroider/macros": "1.19.5",
+    "@embroider/macros": "1.19.6",
     "@embroider/test-setup": "4.0.0",
     "@eslint/js": "9.39.2",
     "@glimmer/component": "2.0.0",