Remove `setData` usage in `ee/spec/frontend/roadmap`

setData usage is deprecated and should be refactored with proper interaction with component under test. See &7330 for details

List of files with disabled lint:

• ee/spec/frontend/roadmap/components/current_day_indicator_spec.js
• ee/spec/frontend/roadmap/components/epics_list_section_spec.js
• ee/spec/frontend/roadmap/components/milestones_list_section_spec.js
• ee/spec/frontend/roadmap/components/roadmap_filters_spec.js