Update API docs to reflect new issuable text limits

Closes #34172

See merge request gitlab-org/gitlab!18617

Enable frozen string for spec/initializers

See merge request gitlab-org/gitlab!18722

Partially addresses:

https://gitlab.com/gitlab-org/gitlab/issues/27703

Fix duplicate environment name causes pipeline creation failure

Closes #34444

See merge request gitlab-org/gitlab!18833

This commit fixes that the duplicate environment name causes
pipeline creation failure.

Downgrade bcrypt to v3.1.12

See merge request gitlab-org/gitlab!18828

v3.1.13 doesn't work compile on ARM platforms:
https://github.com/codahale/bcrypt-ruby/issues/201

We can revert the change in
https://gitlab.com/gitlab-org/gitlab/merge_requests/18225, since this
wasn't an essential update.

See https://gitlab.com/gitlab-org/omnibus-gitlab/issues/4802

Hide license breakdown in /admin if user count is high

See merge request gitlab-org/gitlab!18825

Embed Jaeger tracing in iframe

Closes #30525

See merge request gitlab-org/gitlab!17912

Update dependency @ghitlab/ui to v5.36.0

See merge request gitlab-org/gitlab!18824

Instead of 1,000,000 characters, we increased the limit to 1 megabyte
(https://gitlab.com/gitlab-org/gitlab/merge_requests/18605), which is
1,048,576 bytes.

Closes https://gitlab.com/gitlab-org/gitlab/issues/34172

On GitLab.com, we observed statement timeouts counting the number of
active users minus guests:
https://gitlab.com/gitlab-org/gitlab/issues/32287.

To work around this problem, hide the license breakdown if the estimate
number of users exceeds 100,000.

Add step 2 of the experimental signup flow

See merge request gitlab-org/gitlab!16583

Certify the 25k reference architecture in the docs

Closes gitlab-org/quality/performance#57

See merge request gitlab-org/gitlab!18604

[Frontend] Update trial's banner location for groups

See merge request gitlab-org/gitlab!18524

Return error message when performance bar group is not found

See merge request gitlab-org/gitlab!18444

Show all groups user belongs to in Notification settings

See merge request gitlab-org/gitlab!17303

Activate and fix epics roadmap test

See merge request gitlab-org/gitlab!18796

Show only personal snippets on explore page

See merge request gitlab-org/gitlab!18092

Expose stage services via API

See merge request gitlab-org/gitlab!18208

- Add create, update, destroy actions
- Implement delete service

Resolve "Design system notes icon does not appear"

Closes #34120

See merge request gitlab-org/gitlab!18693

Sort all vulnerabilities by Severity then Confidence for dashboard and Pipeline views

See merge request gitlab-org/gitlab!18675

Added tests
Updated existing test

Edit new environment dropdown content

See merge request gitlab-org/gitlab!18784

The "Explore snippets" page loads very slowly with a large number of
snippets, due to the complexity of the authorization checks for project
snippets.

Since project snippets are of limited interest on the explore page, we
can restrict the query to personal snippets which are visible to the
current user.

We're also replacing the index on `snippets.project_id` with a combined
index on `(project_id, visibility_level)` to further speed up these
queries.

Use Stepable in PodLogsService

See merge request gitlab-org/gitlab!18528

productivity analytics enabled by default

See merge request gitlab-org/gitlab!18801

Remove gitlab-shell from test setup

See merge request gitlab-org/gitlab!18335

Docs for 5503 dast for the default branch

See merge request gitlab-org/gitlab!18232

Next up: docs for DAST on the default branch

Gitaly absorbed the hooks of shell. Before Gitaly would still depend on
the GitLab Shell config. However, this code is only executed when the
hooks are executed. During the tests we don't as that would require the
internal API to run.

These things combined means we could effectively remove the setup off
shell before tests. This makes the setup of tests faster and a big more
smooth.

Enable Productivity Analytics feature

See merge request gitlab-org/gitlab!18754