Allow incomplete commit records to load their full data from gitaly.

Commits can be based on a Hash of data retrieved from PostgreSQL, and
this data can be intentionally incomplete in order to save space.

A new method #gitaly? has been added to Gitlab::Git::Commit, which
returns true if the underlying data source of the Commit is a
Gitaly::GitCommit.

CommitCollection now has a method #enrich which replaces non-gitaly
commits in place with commits from gitaly.

CommitCollection#without_merge_commits has been updated to call this
method, as in order to determine a merge commit we need to have parent
data.

Fixes https://gitlab.com/gitlab-org/gitlab-ce/issues/58805

Update dashboards to additionally use new environment selector

Closes #10135

See merge request gitlab-org/gitlab-ee!9759

Deploy boards now will check for app.gitlab.com/env and
app.gitlab.com/app

Make UserExtractor#initialize the same as CE

See merge request gitlab-org/gitlab-ee!10323

Un-quarantine geo specs

Closes gitlab-org/quality/nightly#86

See merge request gitlab-org/gitlab-ee!10334

Regenerate locale/gitlab.pot

Closes #10565

See merge request gitlab-org/gitlab-ee!10332

Create project-specific Kubernetes resources just-in-time

See merge request gitlab-org/gitlab-ce!25586

Add option to whitelist _html fields from attributes on CacheMarkdownField

See merge request gitlab-org/gitlab-ce!26374

Bump httparty to version 1.16.4

Closes #44342

See merge request gitlab-org/gitlab-ce!25893

Bump httparty to version 1.16.4

See merge request gitlab-org/gitlab-ee!10292

Resolve "Use vendored files for CI config"

Closes #57598

See merge request gitlab-org/gitlab-ce!25871

* dev/master:
  Update CHANGELOG.md for 11.8.3
  Update CHANGELOG.md for 11.7.7
  Only return `commands_changes` used in frontend

Fix project serialization in quick actions response

Closes #2826

See merge request gitlab/gitlabhq!3001

Fix Auto DevOps QA Smoke test hidden banner

Closes gitlab-org/quality/nightly#87

See merge request gitlab-org/gitlab-ce!26254

The banner is no longer being shown for empty repos since
https://gitlab.com/gitlab-org/gitlab-ce/merge_requests/26024 . We
could have made this assertion after pushing the repo but this is
not the thing that really needs to be in an integration or smoke test
as it is already tested in
spec/.../projects/show/user_interacts_with_auto_devops_banner_spec

Merge branch '59208-fix-error-500-on-every-page-when-active-broadcast-message-present-after-upgrading-to-11-9-0' into 'master'

Gracefully handles excluded fields from attributes during serialization on JsonCache

Closes #59208

See merge request gitlab-org/gitlab-ce!26368

Fixed scss_lint failure

Closes #10541

See merge request gitlab-org/gitlab-ee!10319

Closes https://gitlab.com/gitlab-org/gitlab-ee/issues/10541

Avoid loading pipeline status in project search

See merge request gitlab-org/gitlab-ce!26342

Update backup_restore.md instructions for Google Cloud Storage bucket...

See merge request gitlab-org/gitlab-ce!25628

doc/uploads: fix another path to omnibus uploads

See merge request gitlab-org/gitlab-ce!22330

Add docs for alert issue trigger

See merge request gitlab-org/gitlab-ee!9790

This section has been borrowed from https://gitlab.com/gitlab-org/gitlab-ee/blob/e9ea40bc82146e8102ae5e40ac40672ffa599c16/doc/user/project/merge_requests/merge_request_approvals.md