Puma in GDK and rack server lifecycle event abstractions

Closes #52762

See merge request gitlab-org/gitlab-ce!22372

Re-enable debug logging of Git commands and output

See merge request gitlab-org/gitlab-ce!22608

Resolve "Prometheus dashboard broken on Firefox"

Closes #40372

See merge request gitlab-org/gitlab-ce!22400

Resolve "LDAP rename_provider rake task broken"

Closes #52993

See merge request gitlab-org/gitlab-ce!22582

Add reusable component for counting down

See merge request gitlab-org/gitlab-ce!22499

Always use `attribute` to define the product

Closes gitlab-qa#235 and #51826

See merge request gitlab-org/gitlab-ce!22327

Add title to commit links in list view

Closes #42673

See merge request gitlab-org/gitlab-ce!22585

Prettify all the things (part 3)

See merge request gitlab-org/gitlab-ce!22251

The short commit message may be truncated making the truncated
portion unreadable. The title of the link should be the commit message
so that the commit message is shown when hovering the commit message
anchor.

Closes gitlab-org/gitlab-ce#42673

Backport SSH host key detection code to CE

See merge request gitlab-org/gitlab-ce!22577

This allows us (and others) to test drive Puma without it affecting all
users. Puma can be enabled by setting the environment variable
"EXPERIMENTAL_PUMA" to a non empty value.

Upgrade parser gem to 2.5.1.2

See merge request gitlab-org/gitlab-ce!22590

Review apps cleanup schedule runs on master

See merge request gitlab-org/gitlab-ce!22601

Combine all datetime library functions into `datetime_utility.js`

This MR moves datetime methods from `app/assets/javascripts/lib/utils/pretty_time.js` & `app/assets/javascripts/lib/utils/datefix.js` into `app/assets/javascripts/lib/utils/datetime_utility.js`.

Closes #53055

See merge request gitlab-org/gitlab-ce!22570

Impove diff discussion data

See merge request gitlab-org/gitlab-ce!22491

This functionality is needed for SSH push mirroring support, which is a
CE feature.

Refactor Gitlab::KubeClient

Closes #52131

See merge request gitlab-org/gitlab-ce!22073

Move job stuck status to backend

Closes #52202

See merge request gitlab-org/gitlab-ce!22442

Also fixed a bug where discussions wouldn't be assigned to a line
when switching from discussion tab to changes tab

Update Android.gitlab-ci.yml template to current Android SDK version

See merge request gitlab-org/gitlab-ce!22531

Formats the file to match Prettier rules
Removes all blacklisted ESLint rules

Updates path for pretty time related methods
to import from `datetime_utility.js`

Adds methods from `app/assets/javascripts/lib/utils/pretty_time.js`
and deletes the file

Updates path for pikaday parsing methods
to import from `datetime_utility.js`

Adds methods from `app/assets/javascripts/lib/utils/datefix.js`
and deletes the files

Upgrade to Ruby 2.4.5

See merge request gitlab-org/gitlab-ce!22484