Replace jQuery.timeago with timeago.js

app/assets/javascripts/activities.js

app/assets/javascripts/application.js

app/assets/javascripts/build.js

app/assets/javascripts/compare.js

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

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

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

app/assets/javascripts/merge_request_widget.js.es6

app/assets/javascripts/milestone_select.js

app/helpers/application_helper.rb

app/views/events/_event.html.haml

app/views/projects/_last_commit.html.haml

app/views/projects/blame/show.html.haml

app/views/projects/ci/pipelines/_pipeline.html.haml

app/views/projects/refs/logs_tree.js.haml

changelogs/unreleased/upgrade-timeago.yml

spec/helpers/application_helper_spec.rb

spec/javascripts/merge_request_widget_spec.js

vendor/assets/javascripts/jquery.timeago.js