Update dependency @gitlab/ui to v108.4.1

This MR contains the following updates:

Package	Type	Update	Change
@gitlab/ui	dependencies	minor	108.3.1 -> 108.4.1

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

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Release Notes

gitlab-org/gitlab-ui (@​gitlab/ui)

v108.4.1

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Bug Fixes

• GlBreadcrumb: Hide breadcrumb item if it has no text (d9badd5)

v108.4.0

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Features

• GlLink: Add variants and use design tokens in GlLink (ec6b16d)

108.3.1 (2025-02-14)

Bug Fixes

• GlDisclosureDropdownItem: remove improper aria-hidden (37977f8)

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