Update testing.md `# Frontend Testing` to include integration spec for edge cases

See merge request !2055

Geo - Properly set tracking database connection and cron jobs on secondary node

Closes #2181 and #2289

See merge request !1987

Merge branch 'ee-32995-issue-contents-dynamically-replaced-with-stale-version-after-saving-or-refreshing-relative-external_url-only' into 'master'

EE port of: "Fix incorrect ETag cache key when relative instance URL is used"

See merge request !2053

Pipelines quota for user profile

Closes gitlab-ce#30228

See merge request !1536

Add closed_at field to issue CSV export

See merge request !2052

Use Gitaly 0.11.0

See merge request !11966

Avoid repeated queries for pipeline builds on merge requests

See merge request !11888

Cross project triggers

See merge request !2042

CE upstream - Friday

Closes gitlab-ce#31644, gitlab-ce#32985, gitaly#246, gitaly#242, #2433, #2472, gitlab-qa#45, gitlab-qa#48, and gitlab-ce#31701

See merge request !2018

Fix Diff::Position#diff_file for positions on straight diffs

See merge request !11947

Persist stages in the database

Closes #26481

See merge request !11790

Migrate pipeline stages in the database

See merge request !11714

Add more info about private Docker registry

Closes #4028

See merge request !11945

Add more info about private Docker registry

See merge request !2049

Add more info on artifacts expiry date

Closes #18694

See merge request !11942

Add more info on artifacts expiry date

See merge request !2048

Add info on using self-signed certs with Registry

See merge request !2046