Add an `oncall_schedules_ff` feature flag

Renames a permissions prefix from manage_ to admin_

On-call schedules available in GitLab Premium

Add a GraphQL mutation to create on-call schedules for a project

Move the model to EE. It's only available for Gitlab Premium.

Add a GraphQL resolver for on-call schedules

Describe a new type for IncidentManagement::OncallSchedule

The storage for Incident Management on-call schedules

Improves documentation for backup_restore.md

See merge request gitlab-org/gitlab!47996

Convert Knative failed update alert to use gitlab-ui

See merge request gitlab-org/gitlab!47840

Added discussions.json API call to startup JS

See merge request gitlab-org/gitlab!48119

Improve label search with issuable optimization

See merge request gitlab-org/gitlab!48238

Mention plugins in troubleshooting Elasticsearch integration

See merge request gitlab-org/gitlab!48108

Avoid exception when validating diff_note support

See merge request gitlab-org/gitlab!48187

Splat a hash into kwargs for coverage reports finding

See merge request gitlab-org/gitlab!48278

Move Project Export of templates into a separate sidekiq queue

See merge request gitlab-org/gitlab!48134

Avoid empty Danger message from `bundle-size-review`

See merge request gitlab-org/gitlab!48315

Extract experiment class from experimentation lib

See merge request gitlab-org/gitlab!47087

Dequarantine security_reports_spec adding QA selectors after previous removed

See merge request gitlab-org/gitlab!47286

QA selectors for security_reports_spec were
previously removed. This MR adds new QA
selectors and dequarantines the tests

Add check QA tests to feature flag rollout issue template

See merge request gitlab-org/gitlab!48211

This commit improves the label lookup queries when the
`optimized_issuable_label_filter` feature flag is enabled.

Create migration to schedule re-population of historical stats

See merge request gitlab-org/gitlab!48128

Drop unused feature_filter_type experiment column

See merge request gitlab-org/gitlab!48221

This comes after a recent issue was diagnosed for one of our customers
where the plugin was causing the integration not to work. Hopefully
calling out plugins in our docs may save some time as customers may be
able to spot early on that the plugin is the thing causing issues before
asking us to diagnose the problem. Since there are many plugins that are
3rd party to Elasticsearch and they can significantly change the
behaviour of Elasticsearch it's impossible for us to test against all
plugins and be sure what does and does not work.

Allow user-agent to be set in QA tests

See merge request gitlab-org/gitlab!48299

Merge branch '229282-migrate-bootstrap-button-to-gitlab-ui-glbutton-in-app-assets-javascripts-ide-components' into 'master'

Resolve "Migrate Bootstrap button to GitLab UI GlButton in app/assets/javascripts/ide/components/terminal/session.vue"

See merge request gitlab-org/gitlab!46990

Resolve "Migrate Bootstrap button to GitLab UI GlButton in app/assets/javascripts/ide/components/terminal/session.vue"

Fix link to correct epic

See merge request gitlab-org/gitlab!48295

Fix failing GPG spec related to Prometheus

See merge request gitlab-org/gitlab!48308

Gitlab::Gpg memoizes the Prometheus counters at the class-level. We need
to clear these because they may be stale if they were memoized by a
previous spec then another spec resets the Prometheus registry.

Add delete profile tooltip text

See merge request gitlab-org/gitlab!48301

Can be set via the `GITLAB_QA_USER_AGENT` environment variable.

The default Chrome user-agent will be used if the environment variable
is not set.

Update docs to remove an issue board list and filter issues

See merge request gitlab-org/gitlab!48252