Geo - Make registry table SSOT for Uploads

See merge request gitlab-org/gitlab!25482

FileDownloadDispatchWorker looks only at the registry table
for things that have never been synced.

In order for the counts to be correct, we have to distinguish
between "never synced" and "failed" with "retry_count" being
"nil" for the former and "not nil" for the latter.

Feature flag is "geo_file_registry_ssot_sync".

Update index.md

See merge request gitlab-org/gitlab!26716

Improve wording on Experiment Guide page.

See merge request gitlab-org/gitlab!26714

Fix `ci_project_subscriptions` plan limits

See merge request gitlab-org/gitlab!26693

Do not try to create default yet.

Update to refer only to `Gitlab.com?`

Replace undefined severity with unknown severity for occurrences

See merge request gitlab-org/gitlab!26085

Remove index for undoing migration

Optimize todos counters in usage data

See merge request gitlab-org/gitlab!26442

adds an index for batch counting in usage data

Add skeleton loader to new packages list

Closes #208424

See merge request gitlab-org/gitlab!26176

Enable caching for milestone issue counters by default

See merge request gitlab-org/gitlab!21554

We want to expose milestone issue counts to the API for
https://gitlab.com/gitlab-org/gitlab/issues/31289.

The current milestones page is also very slow -
it has N+1 for the same counters.

We want to cache these counters, but they depend on user,
which makes cache useless.

So this commit removes dependency on `user` variable for
milestone issue counters

Update gpgme gem to fix build with gawk 5

See merge request gitlab-org/gitlab!26700

This fixes a build error with gawk versions >= 5:
https://github.com/ueno/ruby-gpgme/issues/134

Add nginx throughput to WAF Anomaly Summary Service

See merge request gitlab-org/gitlab!25273

Move pipeline creation on MR create to Sidekiq

See merge request gitlab-org/gitlab!26172

Move EE Users related specs to correct folder

See merge request gitlab-org/gitlab!26636

Add remote mirrors API documentation

See merge request gitlab-org/gitlab!22486

Fix merge train docs about feature flag

See merge request gitlab-org/gitlab!25870

Remove dead code: Service#find_by_template

See merge request gitlab-org/gitlab!26604

Add more specs for Projects::WebIdeTerminalsController#retry

See merge request gitlab-org/gitlab!26603

Fix CodeReviewMetrics worker failure with kwargs

Closes #209160

See merge request gitlab-org/gitlab!26647

User sentence case in HA docs

See merge request gitlab-org/gitlab!26482

Fix bad link, accidentally pushed to !26398

See merge request gitlab-org/gitlab!26691

Documentation: Conflicting information when a file matches multiple entry in CODEOWNERS

Closes #205394

See merge request gitlab-org/gitlab!25084

Refactoring compliance docs

See merge request gitlab-org/gitlab!25735

Moving compliance docs into new Compliance section

Use factory prof to find un-needed db access in tests

See merge request gitlab-org/gitlab!26532

See merge request gitlab-org/gitlab!26398

Add user_type and bot_type consistency tests

See merge request gitlab-org/gitlab!26578

Use build and let_it_be where it can be used instead of let
and create

Refactor analytics metric refresh specs

See merge request gitlab-org/gitlab!26585

Don't try to stop already stopped environments

See merge request gitlab-org/gitlab!26678

Replace 'issue-external' icon with 'external-link'

See merge request gitlab-org/gitlab!26402