Migrate "app/assets/javascripts/packages_and_registries/infrastructure_registry/details/components/package_files.vue" to GlDisclosureDropdown or GlCollapsibleListbox

One or more dropdowns in app/assets/javascripts/packages_and_registries/infrastructure_registry/details/components/package_files.vue should be migrated to one of the new dropdown components. See the parent epic for guidance on migration strategies.