chore(deps): update dependency @gitlab/ui to v21.3.0

This MR contains the following updates:

Package	Type	Update	Change
@gitlab/ui (source)	dependencies	minor	21.2.1 -> 21.3.0

MR created with the help of gitlab-org/frontend/renovate-gitlab-bot

---

Release Notes

gitlab-org/gitlab-ui

v21.3.0

Compare Source

Features

• css: Add gl-pt-8 utility class (7f9e760)

21.2.2 (2020-09-15)

Bug Fixes

• GlSearchBoxByType: update GlSearchBoxByType button border (1807e98)

21.2.1 (2020-09-15)

Bug Fixes

• dropdown button: Differentiate between dropdown panel and button (c0aab2f)

v21.2.2

Compare Source

Bug Fixes

• GlSearchBoxByType: update GlSearchBoxByType button border (1807e98)

---

Renovate configuration

📅 Schedule: At any time (no schedule defined).

🚦 Automerge: Enabled.

♻️ Rebasing: Whenever MR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this MR and you won't be reminded about this update again.

---

• If you want to rebase/retry this MR, check this box

---

This MR has been generated by Renovate Bot.