Merge branch 'docs-multiple-environment-feature-flags' of gitlab.com:gitlab-org/gitlab-ee into docs-multiple-environment-feature-flags

Also, add shared section about Environment scopes

Revise

Address feedback

fixed

Fix docs

Fix docs

Fix anchor

Update default expiry information for artifacts

See merge request gitlab-org/gitlab-ce!24932

Upgrade Gitaly to 1.19.0

See merge request gitlab-org/gitlab-ce!25019

Upgrade cluster applications, starting with runner

See merge request gitlab-org/gitlab-ce!24789

Fix increased package size of public/assets

Closes gitlab-org/distribution/team-tasks#310

See merge request gitlab-org/gitlab-ce!25018

Pages templates on the new project templates menu

Closes #47857

See merge request gitlab-org/gitlab-ce!24906

Quarantine flaky tests

See merge request gitlab-org/gitlab-ee!9492

Quarantine flaky tests

See merge request gitlab-org/gitlab-ce!25015

Wait for login page to load at the beginning of QA suite

See merge request gitlab-org/gitlab-ce!24991

Wait for login page to load at the beginning of QA suite

See merge request gitlab-org/gitlab-ee!9479

See issues:
https://gitlab.com/gitlab-org/quality/nightly/issues/72
https://gitlab.com/gitlab-org/quality/staging/issues/19
https://gitlab.com/gitlab-org/quality/staging/issues/29

See issues:
https://gitlab.com/gitlab-org/quality/nightly/issues/70
https://gitlab.com/gitlab-org/quality/nightly/issues/72
https://gitlab.com/gitlab-org/quality/staging/issues/21
https://gitlab.com/gitlab-org/quality/staging/issues/31
https://gitlab.com/gitlab-org/quality/staging/issues/30
https://gitlab.com/gitlab-org/quality/staging/issues/26

Store DAST scan results into the database

Closes #7062

See merge request gitlab-org/gitlab-ee!9192