Migrate ee/app/assets/javascripts/analytics/cycle_analytics/components/create_value_stream_form/custom_stage_event_field.vue to GlDisclosureDropdown or GlCollapsibleListbox
One or more dropdowns in ee/app/assets/javascripts/analytics/cycle_analytics/components/create_value_stream_form/custom_stage_event_field.vue should be migrated to one of the new dropdown components. See the parent epic &10695 for guidance on migration strategies.