Update dependency @gitlab/ui to v89

This MR contains the following updates:

Package	Type	Update	Change
@gitlab/ui	dependencies	major	88.6.0 -> 89.0.0

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

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Release Notes

gitlab-org/gitlab-ui (@​gitlab/ui)

v89.0.0

Compare Source

Code Refactoring

• GlCarousel: Remove Carousel component from design system (1e9e2f0)

BREAKING CHANGES

• GlCarousel: Removes Carousel component entirely

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