Update @embroider/addon-shim

This doesn’t help, unsurprisingly, but no harm either.

Author: backspace

packages/boxel-icons/package.json

@@ -34,7 +34,7 @@
   },
   "dependencies": {
     "@ember/test-waiters": "^3.0.2",
-    "@embroider/addon-shim": "^1.8.9",
+    "@embroider/addon-shim": "^1.9.0",
     "@glint/template": "1.3.0",
     "typescript": "~5.1.6"
   },

packages/boxel-motion/addon/package.json

@@ -35,7 +35,7 @@
   },
   "dependencies": {
     "@ember/string": "^3.1.1",
-    "@embroider/addon-shim": "^1.8.9",
+    "@embroider/addon-shim": "^1.9.0",
     "@glimmer/component": "^1.1.2",
     "@glint/template": "1.3.0",
     "ember-auto-import": "^2.7.2",

packages/boxel-ui/addon/package.json

@@ -37,7 +37,7 @@
     "@cardstack/boxel-icons": "workspace:*",
     "@ember/string": "^3.1.1",
     "@ember/test-waiters": "^3.0.2",
-    "@embroider/addon-shim": "^1.8.9",
+    "@embroider/addon-shim": "^1.9.0",
     "@floating-ui/dom": "^1.6.3",
     "@glint/template": "1.3.0",
     "classnames": "^2.3.2",