Change all `:empty_project` to `:project`

features/steps/explore/groups.rb

features/steps/group/milestones.rb

features/steps/groups.rb

features/steps/project/deploy_keys.rb

features/steps/project/redirects.rb

features/steps/project/team_management.rb

features/steps/shared/project.rb

features/steps/user.rb

...controllers/admin/application_settings_controller_spec.rb

spec/controllers/admin/dashboard_controller_spec.rb

spec/controllers/admin/groups_controller_spec.rb

spec/controllers/admin/projects_controller_spec.rb

spec/controllers/admin/services_controller_spec.rb

spec/controllers/admin/users_controller_spec.rb

spec/controllers/autocomplete_controller_spec.rb

spec/controllers/dashboard/labels_controller_spec.rb

spec/controllers/dashboard/milestones_controller_spec.rb

spec/controllers/dashboard/todos_controller_spec.rb

spec/controllers/dashboard_controller_spec.rb

spec/controllers/explore/projects_controller_spec.rb