Remove Rails 4-specific code from `FromUnion.from_union`

Closes #51575

See merge request gitlab-org/gitlab-ce!30587

[EE] Remove Rails 4-specific code from `FromUnion.from_union`

See merge request gitlab-org/gitlab-ee!14637

Upgrade Gitaly to v1.53.0

See merge request gitlab-org/gitlab-ce!30614

Updates frontend to Frontend

See merge request gitlab-org/gitlab-ce!30631

Fix whitespace in install and integration docs

See merge request gitlab-org/gitlab-ce!30600

Many code blocks are 4spaced, and they render in GitLab
without coloring as a result, even though they are
fenced with a language label. If in a list, other items
will render as being in a code block too, even if not
meant to. This fixes all these issues, and cleans up
minor white space issues in install and integration docs

Fix assertion on scoped label edits

Closes gitlab-org/quality/nightly#114

See merge request gitlab-org/gitlab-ee!14635

Fix broken environments terminal

See merge request gitlab-org/gitlab-ce!30401

Loaded the xterm css file in order to fix the styling issues

Correct link to external_dashboard doc

See merge request gitlab-org/gitlab-ce!30019

Enable puma by default in GDK

Closes gitlab-development-kit#490

See merge request gitlab-org/gitlab-ce!30285

Add CI variable to provide GitLab FQDN

Closes #64161

See merge request gitlab-org/gitlab-ce!30417

Add reconfigure step to secrets restoration

See merge request gitlab-org/gitlab-ce!30617

Fix Markdown example for PlantUML docs

See merge request gitlab-org/gitlab-ce!30513

Set unique modal IDs

See merge request gitlab-org/gitlab-ce!30532

Make sure all specs run properly

See merge request gitlab-org/gitlab-ce!30367

Signed-off-by: Takuya Noguchi <takninnovationresearch@gmail.com>

Create Knative role and binding with service account

See merge request gitlab-org/gitlab-ce!30235

GitLab uses a kubernetes service account to perform deployments. For
serverless deployments to work as expected with externally created
clusters with their own knative installations (e.g. via Cloud Run), this
account requires additional permissions in the serving.knative.dev API
group.

Replace path with filename in Jest config

Closes #64429

See merge request gitlab-org/gitlab-ce!30608

Bring buttons up to design spec

Closes #61146, #61144, and #61145

See merge request gitlab-org/gitlab-ce!28545

This is a CSS effort only.

Fixes the padding of the buttons to be `8px 12px`
(including border) so that the button height is
32px.

Also adjusts the border width for all buttons when
the state is `hover`, `focus`, or `active to be 2px
thick instead of 1px thick. This is accomplished
through an inset box-shadow as not to increase
the size of the button.

Fixes some colors for primary and tertiary buttons.

- handling properties needs to be skipped when
creating test records in order to test the legacy
data

Crosslink Prometheus and Grafana to HA monitoring

Closes #63419

See merge request gitlab-org/gitlab-ce!30588