Fix unused async in spec/frontend/[j-q]*

...onnect/branches/components/source_branch_dropdown_spec.js

.../frontend/jira_import/components/jira_import_form_spec.js

...rontend/jobs/components/job/manual_variables_form_spec.js

spec/frontend/jobs/components/job/sidebar_header_spec.js

spec/frontend/jobs/components/job/sidebar_spec.js

...frontend/jobs/components/table/cells/actions_cell_spec.js

spec/frontend/lib/apollo/persist_link_spec.js

spec/frontend/lib/utils/color_utils_spec.js

spec/frontend/lib/utils/intersection_observer_spec.js

spec/frontend/lib/utils/poll_spec.js

...nd/members/components/table/expiration_datepicker_spec.js

spec/frontend/members/utils_spec.js

...d/ml/experiment_tracking/components/delete_button_spec.js

...cking/routes/experiments/show/ml_experiments_show_spec.js

...nd/monitoring/components/variables/dropdown_field_spec.js

...tes/components/note_actions/timeline_event_button_spec.js

spec/frontend/notes/components/note_form_spec.js

spec/frontend/notes/components/notes_app_spec.js

spec/frontend/notes/deprecated_notes_spec.js

spec/frontend/notes/stores/actions_spec.js