Remove deprecated 'expires_at' from project snippets API

Closes #14156

See merge request !8723

Fix missing group members from Import/Export

Closes #25124

See merge request !8923

Fix broken links to docs

See merge request !9022

Update Grape routes to work with current version of Grape

See merge request !8992

Disallow system notes for closed issuables

Closes #19262

See merge request !8848

Resolve "Mouse text cursor above pagination elements"

Closes #26920

See merge request !9003

Merge branch '26165-combine-runners-and-variables-and-triggers-and-ci-cd-pipelines-settings-pages' into 'master'

Merge Triggers, Runners, Variables and Pipelines to a single option called "CI/CD Pipelines"

Closes #26165

See merge request !8430

add the stewardship label to contributing.md

See merge request !8997

Backport changes from gitlab-org/gitlab-ee!998

See merge request !8984

Fix filtered search user autocomplete for gitlab instances that are hosted on a subdirectory

Closes #27343

See merge request !8891

Remove lighter colored commit description border

See merge request !9005

Use vue.js Pipelines table in commit and merge request view

Closes #27141

See merge request !8844

Also updated the #update action inside the variables controller as
to render the show and not redirect back to the settings route

Redirections now show a flash message wether the variable was created correctly or not using a flash message

Added tests to verify the access policy to the new controller