Update dependency @babel/plugin-proposal-decorators to v7.28.0 (#1432)

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

Author: renovate[bot]

package.json

@@ -51,7 +51,7 @@
     "silent-error": "^1.1.1"
   },
   "devDependencies": {
-    "@babel/plugin-proposal-decorators": "7.27.1",
+    "@babel/plugin-proposal-decorators": "7.28.0",
     "@ember/optional-features": "2.2.0",
     "@ember/string": "3.1.1",
     "@ember/test-helpers": "3.3.1",