Refactor Service Desk's bot user

See merge request gitlab-org/gitlab-ee!10353

Before this commit some migration specs failed with

    4) Gitlab::BackgroundMigration::DeleteDiffFiles#perform when diff
       files can be deleted rollsback if something goes wrong
       Failure/Error: return false if internal?

       NameError:
         undefined local variable or method `bot_type' for
           #<User id: @namespace1117>
         Did you mean?  bot_type=
                        bot_type?
       # ./ee/app/models/ee/user.rb:281:in `bot?'
       # ./ee/app/models/ee/user.rb:277:in `internal?'
       # ./app/models/user.rb:1452:in `password_required?'
       # ./ee/app/models/ee/user.rb:290:in `password_required?'

https://gitlab.com/gitlab-org/gitlab-ee/-/jobs/185393284

It's because we migrate down before each migration spec which actually
introduces `bot_type`.

We kept support_bot? where the actual Service Desk user is checked

It's not really required since `ActiveRecord::Enum` overrides
`#support_bot?` when we define `enum :bot_type { support_bot: 1 }`.

But let's make sure that we don't use this column anymore.

It's not needed anymore as we've replaced boolean `support_bot` with
enum `bot_type`.

Stop using `users.support_bot` which we will remove in a upcoming
release.

Enable RSpec/ExampleWording cop

See merge request gitlab-org/gitlab-ce!27187

Scoped labels premium

See merge request gitlab-org/gitlab-ee!10831

Fixed fluid layout preference not being respected in diffs

Closes #52916

See merge request gitlab-org/gitlab-ce!27302

Fixes white background in the save button for environments

Closes #60261

See merge request gitlab-org/gitlab-ce!27161

Removes extra btn class from dropdown

Closes #60224

See merge request gitlab-org/gitlab-ce!27160

[EE] Enable RSpec/ExampleWording cop

See merge request gitlab-org/gitlab-ee!10692

Also add frozen_string_literal

Allow unauthenticated downloads of Chrome

Closes #60441

See merge request gitlab-org/gitlab-ce!27297

Remove recommending moving the home dir to NFS

See merge request gitlab-org/gitlab-ce!27286

Remove recommending moving the home dir to NFS

See merge request gitlab-org/gitlab-ee!10816

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/52916

Merge branch '11112-insights-charts-don-t-load-data-from-subgroups-of-a-top-level-group' into 'master'

Resolve "Insights charts don't load data from subgroups of a top-level group"

Closes #11112

See merge request gitlab-org/gitlab-ee!10801

Signed-off-by: Rémy Coutable <remy@rymai.me>

Update README.md, fix broken GL logo

See merge request gitlab-org/gitlab-ee!10804

Resolve CE/EE diff in text_utility_spec

See merge request gitlab-org/gitlab-ce!27291

Fixes stylelint issues for builds.scss

Closes #59896

See merge request gitlab-org/gitlab-ce!27279

Include fixed-width mixin instead of extending the class

See merge request gitlab-org/gitlab-ce!27277

The Google GPG key used to sign the apt repository expired today, so all
installs will fail unless `--allow-unauthenticated` is used. We should
revert this once the repository has been updated with the more recent
key.

Closes https://gitlab.com/gitlab-org/gitlab-ce/issues/60441

GraphQL is required for design management.

See merge request gitlab-org/gitlab-ee!10799

Fix api group visibility

See merge request gitlab-org/gitlab-ce!26896

Added changelog and rebased