As described in
https://www.ruby-lang.org/en/news/2020/12/25/ruby-3-0-0-released/, Ruby
3.0.0 promoted net-http and net-imap from stdlib. Adding net-http as a
dependency avoids "already initialized constant errors" if net-imap or
some other gem is included. uri is needed as well for a similar reason.

uri needs to be locked down because bundler v2.1.4 isn't happy with
v0.10.1 (https://gitlab.com/gitlab-org/gitlab/-/jobs/1114901581):

```
Gem::LoadError: You have already activated uri 0.10.0, but your
Gemfile requires uri 0.10.1. Since uri is a default gem, you can either
remove your dependency on it or try updating to a newer version of
bundler that supports uri as a default gem.
```

This is the same BSD license as Ruby:

1. https://github.com/ruby/net-protocol/blob/master/LICENSE.txt
2. https://github.com/ruby/ruby/blob/master/BSDL

This gem isn't needed inside GitLab, and excluding it avoids some
"already initialized constant" errors due to conflicting implementations
of `net/imap`. `bin/mail_room` already requires this gem.

This version bumps the version of Net::IMAP to fix a deadlock issue
and changes timestamps to use ISO 8601 format.

Related issues:

1. https://gitlab.com/gitlab-org/charts/gitlab/-/issues/2576
2. https://github.com/ruby/net-imap/issues/14
3. https://gitlab.com/gitlab-com/gl-infra/infrastructure/-/issues/12869

Diff:
https://my.diffend.io/gems/gitlab-mail_room/0.0.9/0.0.10

Switch on-call shift model specs to using UTC

See merge request gitlab-org/gitlab!57196

Refactor Gitaly introductory information

See merge request gitlab-org/gitlab!57063

Update spacing edit button admin page

See merge request gitlab-org/gitlab!57151

Detect MarkerRanges for word-diff mode

See merge request gitlab-org/gitlab!56401

Move Notes (Comments) to dedicated ES index

See merge request gitlab-org/gitlab!53013

Add epic events missing metric definitions

See merge request gitlab-org/gitlab!56891

Fix(EoA Banner): add test coverage + log error

See merge request gitlab-org/gitlab!54068

Add test coverage for when user actually dismisses
the banner

Merge branch '325579-master-broken-rspec-spec-workers-service_desk_email_receiver_worker_spec' into 'master'

Master broken: rspec ./spec/workers/service_desk_email_receiver_worker_spec.rb:28

See merge request gitlab-org/gitlab!57182

Move graphql timelogs to ce

See merge request gitlab-org/gitlab!56633

Remove markdown from comment search result

See merge request gitlab-org/gitlab!55255

in `marginalia_spec.rb`
and remove quarantine of `service_desk_email_receiver_worker.rb`

Fixed styling of commit comment buttons

See merge request gitlab-org/gitlab!56982

Add reference to wiki if the snippets has more than 10 files

See merge request gitlab-org/gitlab!46198

Add a pricing link; this feature is not free.

WebIDE show fork button when cannot push code

See merge request gitlab-org/gitlab!56608

- Uses the same BE helpers that are used in the
project homepage.
- Uses a ViewModel approach, such that a getter
returns an easily consumable model so that the
cannot_push_code_alert component is trivial.

Update DAST CI template to include new DAST API analyzer

See merge request gitlab-org/gitlab!51824

Track agent token last_used

See merge request gitlab-org/gitlab!56143

Add track_usage to cluster agent token model and kas API.
Add last_used_at to GraphQl.
Update associated tests and docs.

Update project import API field

See merge request gitlab-org/gitlab!57150

Extend validity period for user counts to 24 hours [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!57122

Merge branch '323246-registration-learn-gitlab-template-project-with-incorrect-onboarding-instructions' into 'master'

Fix  "Learn GitLab" project template - issue "Settings" menu

See merge request gitlab-org/gitlab!57098

Update docs to remove kramdown warnings

See merge request gitlab-org/gitlab!57094

Update links in various docs

See merge request gitlab-org/gitlab!57093

Abort pipelines when user is blocked [RUN ALL RSPEC] [RUN AS-IF-FOSS]

See merge request gitlab-org/gitlab!56126

This adds the ability to cancel user pipelines
in bulk, similarly to what we allow with project
pipelines. This is expected to be much faster
and less prone to N+1s when cancelling pipelines
due to a user block event.

Closes https://gitlab.com/gitlab-org/gitlab/-/issues/325276

Consistent gitaly nfs warnings, and more cross linking to reduce duplication.

See merge request gitlab-org/gitlab!55354

MR: https://gitlab.com/gitlab-org/gitlab/-/merge_requests/57151