feat: add betterncm-packed-plugins (#287)

[skip ci]

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->

## Summary by CodeRabbit

- **New Features**
- Added support for the `betterncm-packed-plugins`, enhancing
flexibility in managing project dependencies.

<!-- end of auto-generated comment: release notes by coderabbit.ai -->

package.json

@@ -18645,6 +18645,9 @@
     },
     "loading-attribute-polyfill": {
       "version": "*"
+    },
+    "betterncm-packed-plugins": {
+      "version": "*"
     }
   }
 }