Merge branch 'upgrade-eslint-ee' into 'master'

.eslintrc.yml

app/assets/javascripts/badges/components/badge.vue

app/assets/javascripts/boards/components/board_list.vue

app/assets/javascripts/boards/components/board_new_issue.vue

...assets/javascripts/boards/components/issue_card_inner.vue

app/assets/javascripts/boards/index.js

app/assets/javascripts/deploy_keys/components/key.vue

app/assets/javascripts/diffs/components/diff_file_header.vue

...sets/javascripts/diffs/components/diff_gutter_avatars.vue

app/assets/javascripts/diffs/components/inline_diff_view.vue

...ssets/javascripts/diffs/components/parallel_diff_view.vue

...avascripts/environments/components/environments_table.vue

...ed_search/components/recent_searches_dropdown_content.vue

...ts/frequent_items/components/frequent_items_list_item.vue

app/assets/javascripts/groups/components/item_actions.vue

...ssets/javascripts/ide/components/branches/search_list.vue

...assets/javascripts/ide/components/commit_sidebar/list.vue

app/assets/javascripts/ide/components/file_finder/index.vue

app/assets/javascripts/ide/components/file_finder/item.vue

app/assets/javascripts/ide/components/jobs/stage.vue