Frontend Camunda projects are used internally as dependencies in other Camunda (frontend) projects.
During release, the version is manually replaced (with the release and nextDevelopment versions) in the package.json dependency declarations. (for camunda-webapp-translations and camunda-bpm-webapp, see here and here)
If a new project is added, additional code needs to be added.
A project.frontend.updatedependency macro exists that performs this functionality.