This refactors our StartupJS for GraphQL to be a Apollo Link [0] based
application. Instead of manually filling the cache, we build an
interceptor which "short-circuits" the Apollo Link pipeline in case the
query can be found in StartupJS. In case the query fails, is not cached,
has different variables, is done more than once, we skip it down the
pipeline. Also if all Startup Queries have been done, it self-disables.

We also now batch all StartupJS requests into one GraphQL call.

[0]: https://www.apollographql.com/docs/link/overview/

Add `manuallyCollapsed` flag to Diff Files

See merge request gitlab-org/gitlab!43911

Of course, this means that there's a bunch of logic
to coordinate the new flag with the original -
`automaticallyCollapsed` - flag.

In addition: the UI is updated to use the new flag
whenever it's been set, but to continue to fall back
to the old flag. This is primarily facilitated by a new
helper utility for diff files to do the resolution in a
single centralized place.

Of note: the diff_file is updated to depend on the
global store as the authoritative source of determining
whether the file is collapsed or not. The previous
version kept a local `isCollapsed` in sync with the
global store, which introduced a huge amount of
interwoven complexity. The update ingests the
resolved collapsed state from the store when
various observed properties update instead of
inverting that flow.

This is a full refactor of file collapsing.
Because the previous version was a single flag, then
modified with a user preference (file-by-file), there
were some issues including a THIRD possible way
that collapsing works. This update slightly simplifies
how collapsing works by depending more heavily
on the two flags stored in state and only modifying
them with the user preference when necessary.

Gracefully recover from deleted LFS file

See merge request gitlab-org/gitlab!45459

Update Web IDE "New Directory" tooltip to gl component

See merge request gitlab-org/gitlab!45838

Add the Ability to sort Issues and Merge Requests

See merge request gitlab-org/gitlab!45003

When searching for Issues and Merge Request sometimes you don't want to
see the most accurate result. You might want to see the the newest
result.
Now you can change from Relevant results to newest or oldest results. As
we add more filtering in the future this will be even more valuable.

Fix rendering of service desk notes

See merge request gitlab-org/gitlab!45772

Fix update-tests-metadata job for Ruby 2.7 (part 2)

See merge request gitlab-org/gitlab!46103

Add DAST Site Validation GraphQL query endpoint

See merge request gitlab-org/gitlab!45343

Reset the search filters upon a scope change

See merge request gitlab-org/gitlab!45808

Update tooltips for deploy keys page components

See merge request gitlab-org/gitlab!45936

Updates app/assets/javascripts/deploy_keys/components/key.vue to use
the new tooltips instead of the old deprecated ones.

Check for missing reference in job.only.refs

See merge request gitlab-org/gitlab!45683

Previous RubyGems versions used to load delegate indirectly, but
this has changed with Ruby 2.7:
https://stackoverflow.com/a/60468620/1992201

Fix incorrect S3 KMS key id ARN in object storage

See merge request gitlab-org/gitlab!46107

Replace fa-external-link in project artifacts

See merge request gitlab-org/gitlab!46014

Fixes new discussions getting auto resolved

See merge request gitlab-org/gitlab!46001

Increase the count of allowed dotenv variables to 20

See merge request gitlab-org/gitlab!45815

Currently, the ParseDotenvArtifactService has a hardcoded limit
of 10 parsed variables per dotenv file. This change increases that
to 20.

The rails gem requires bundler >= 1.3.0. Since Ruby v2.7.2 comes with
bundler v2, we need to install v1.17.3 to meet this requirement.

Refactor Reenqueuer shared examples

See merge request gitlab-org/gitlab!45963

Improve admin operations landing page

See merge request gitlab-org/gitlab!46084

This commit adds the DAST Site
Validation GraphQL query endpoint to enable
frontend to get the status of a DAST Site
Validation

Revert "Merge branch '233447-fix-sourcegraph-not-loading-from-asset-host' into 'master'"

See merge request gitlab-org/gitlab!46071

Add fuzzy-search on full path in Groups API

See merge request gitlab-org/gitlab!45729

This change adds new column to fuzzy-search in Groups API to filter on
full path.

Document support for Elasticsearch 6.x is deprecated

See merge request gitlab-org/gitlab!45619

Add e2e test for real time assignee updates

See merge request gitlab-org/gitlab!44214

Adds an e2e test for real time updates of issue assignees

In the following MRs:

1. https://gitlab.com/gitlab-org/gitlab/-/merge_requests/35292
1. https://gitlab.com/gitlab-org/gitlab/-/merge_requests/33176

We broke support support for these previous version by introducing
features that are only available in 6.4+ and 6.2+
https://gitlab.com/gitlab-org/gitlab/-/issues/271218 .

The simplest option here seems to just be to document that it's
unsupported rather than trying to fix these since we're going to remove
support soon anyway for all of `6.x`.

Fix update-tests-metadata CI job

See merge request gitlab-org/gitlab!46097

Remove usage statistics docs links

See merge request gitlab-org/gitlab!45856

The upgrade to Ruby v2.7.2 meant that only bundler v2 was installed by
default. rspec_profiling v0.0.5 required bundler v1, but v0.0.6 relaxed
the dependency to allow for bundler 2 (see
https://github.com/foraker/rspec_profiling/commit/6ad1ec4e37).

Associate Terraform state versions with the CI job that created them

See merge request gitlab-org/gitlab!45347

Fix Gitpod gems

See merge request gitlab-org/gitlab!46092