[bug]: external dependency is included in output

[jorrit]

What version of @strapi/sdk-plugin are you using?

• NPM 11
• Node 22
• React 18.3.1
• @strapi/sdk-plugin 5.3.0

What's Wrong?

I noticed that the admin build of strapi-plugin-navigation includes the entire lodash dependency. I think this related to some kind of configuration in @strapi/sdk-plugin and/or @strapi/pack-up.

See VirtusLab-Open-Source/strapi-plugin-navigation#509 for more discussion.

To Reproduce

1. Checkout https://github.com/VirtusLab-Open-Source/strapi-plugin-navigation
2. yarn + yarn build (which uses strapi-plugin build)
3. Notice that dist/admin/index.js and dist/admin/index.mjs contain the source of the lodash dependency.

Expected Behaviour

All dependencies should be external.