Update dependency @babel/plugin-proposal-decorators to v7.29.0 (#345)

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

Author: renovate[bot]

package.json

@@ -45,7 +45,7 @@
   },
   "devDependencies": {
     "@babel/eslint-parser": "7.28.6",
-    "@babel/plugin-proposal-decorators": "7.28.6",
+    "@babel/plugin-proposal-decorators": "7.29.0",
     "@ember/optional-features": "2.3.0",
     "@ember/string": "4.0.1",
     "@ember/test-helpers": "5.4.1",