Add documentation about the sync CI stage

Closes #34890

See merge request gitlab-org/gitlab!19101

Record sidekiq queuing latency

See merge request gitlab-org/gitlab!19005

Adds a Prometheus histogram, `sidekiq_jobs_queue_duration_seconds` for
recording the duration that a Sidekiq job is queued for before being
executed.

This matches the scheduling_latency_s field emitted from structured
logging for the same purpose.

Update quarantined test so that it runs (although it's still quarantined)

See merge request gitlab-org/gitlab!19203

Enable the HttpOnly flag for experimentation_subject_id cookie

Closes #34851

See merge request gitlab-org/gitlab!19189

CloudFormation template for creating EKS clusters

See merge request gitlab-org/gitlab!17036

Fix `RSpec/ScatteredSetup` rubocop failure

See merge request gitlab-org/gitlab!19207

Return merge-request state in API

See merge request gitlab-org/gitlab!18888

- expose `has_conflicts` and `mergeable_discussions_state` in API
- add unit tests for the change

Merge branch '34408-reducing-the-data-being-loaded-per-design-on-first-load-of-design-management' into 'master'

[BE] Reduce the data being loaded per Design on first load

See merge request gitlab-org/gitlab!18997

- added selection by id and ids

Support query for multiple states

See merge request gitlab-org/gitlab!18518

Populate CI variables from params

Closes #24146

See merge request gitlab-org/gitlab!19023

When running a new pipeline on a
project, this commit gives the
feature of populating ci vars
from a url query string.

Workaround for QA tests when job_log_json flag is enabled

Closes #34901, #34900, and #34899

See merge request gitlab-org/gitlab!19145

Make 404 page button same height as text input

See merge request gitlab-org/gitlab!19080

Fix instance audit log spec flakiness

Closes #34865 and #34428

See merge request gitlab-org/gitlab!19089

Ensure that user is logged in as admin by logging out if already
logged in and login in not logged in already

Fix group_audit_logs_1_spec e2e test failures on staging

Closes #34237

See merge request gitlab-org/gitlab!19077

removes `export_designs` feature flags from ee files

Closes #32535

See merge request gitlab-org/gitlab!18507

closes #32535

* removes ee/project_tree_restorer and documentation line calling out incomplete support since they are no longer needed
* removes remove_feature_dependent_sub_relations method from project_tree_restorer

Move last 5 docs out of the workflow dir

See merge request gitlab-org/gitlab!18628

While working on another MR I noticed that this quarantined test had a
bug that caused it to report the wrong number of arguments when
calling `within_submenu`.

This changes fixes the test, although it stays in quarantine because
the issue for the bug in the application is still open.

This change also updates the block args so the cop doesn't have to
be disabled.

docs - Sort in ascending order the list of deprecated variables

See merge request gitlab-org/gitlab!19157

Update retrieval instruction of CA cert when adding k8s cluster

See merge request gitlab-org/gitlab!18031

Creates the cluster itself, a group of worker nodes, and the
networking rules to allow them to communicate.

Assumes that a VPC, an IAM service role, subnets and
security group have already been created and will be
passed as parameters.

The nodes must wait for the cluster to finish creating
as they need to register with the cluster on launch,
which will fail if the cluster has yet to finish creating.

Update Troubleshooting section in using_docker_build.md

See merge request gitlab-org/gitlab!18953

Clarify variable type example

See merge request gitlab-org/gitlab!18588

Updated link name to match the page name (Uploads administration)

See merge request gitlab-org/gitlab!19149

Supporting multiple states query on todo. Also updating specs.

Simplify method as suggested by @reprazent

Remove method for_states

Revert "Simplify method as suggested by @reprazent"

This reverts commit 011f44d1c1e51120dbc5fefbb70f68116439e6aa.

Fix time-dependent test failure in release_block_spec.js

Closes #35019

See merge request gitlab-org/gitlab!19194

This test was using timeago.js to show amount of time elapsed since the
release date. Since timeago.js uses Date() to determine the current
timestamp, we can just mock that value to ensure consistent results.

Closes https://gitlab.com/gitlab-org/gitlab/issues/35019

Moves the final 5 docs out of /workflow and
into their correct locations. Updates links
both inside the docs, and TO the docs, and
ensures all moved docs are linked from a
the appropriate index. Disqus comments moved too.