Merge remote-tracking branch 'origin/master' into dz-nested-groups-improvements-3

.gitlab-ci.yml

...assets/javascripts/boards/filters/due_date_filters.js.es6

app/views/users/calendar_activities.html.haml

...ogs/unreleased/26287-link-branch-in-calendar-activity.yml

changelogs/unreleased/cover-my-karma.yml

changelogs/unreleased/issue_23317.yml

config/karma.config.js

config/webpack.config.js

package.json

spec/javascripts/test_bundle.js

yarn.lock