Merge branch 'tz-upgrade-dateformat' into 'master'

app/assets/javascripts/lib/utils/datetime_range.js

app/assets/javascripts/lib/utils/datetime_utility.js

...onents/__snapshots__/geo_replicable_time_ago_spec.js.snap

...frontend/requirements/components/requirement_item_spec.js

.../requirements/components/requirement_status_badge_spec.js

.../security_dashboard/components/vulnerability_list_spec.js

package.json

spec/frontend/issuable_list/components/issuable_item_spec.js

...ntend/jira_import/components/jira_import_progress_spec.js

spec/frontend/lib/utils/datetime_utility_spec.js

spec/frontend/members/components/table/expires_at_spec.js

...frontend/monitoring/components/charts/time_series_spec.js

...ry/explorer/components/details_page/tags_list_row_spec.js

spec/frontend/user_lists/components/user_lists_table_spec.js

...ntend/vue_mr_widget/components/mr_widget_pipeline_spec.js

.../vue_mr_widget/components/states/mr_widget_closed_spec.js

.../vue_mr_widget/components/states/mr_widget_merged_spec.js

yarn.lock