fix(deps): update dependency @gitlab/ui to v91

This MR contains the following updates:

Package	Type	Update	Change	Pending
@gitlab/ui	dependencies	major	90.2.0 -> 91.1.2	91.3.0 (+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)

v91.1.2

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Bug Fixes

• GlFormSelect: restore inline layout (0b8e854)

v91.1.1

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Bug Fixes

• avatarsInline: fix incorrect class name (ab8f1c2)

v91.1.0

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Features

• GlDuoChat: display attached context in chat messages (be92188)

v91.0.0

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Code Refactoring

• Path: Update to tokens (f57c5e4)

BREAKING CHANGES

• Path: Replace SCSS variables with design tokens for the Path component and make some minor design tweaks. Remove theme option.

v90.5.0

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Features

• Alert: Update design to match new design vision (27a6f98)

v90.4.0

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Features

• DesignTokens: link tokens (0f388c6)
• Forms: Update design tokens (1cb4d5e)

v90.3.0

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Features

• Add gl-animate-skeleton-loader as Tailwind Component (4b5d3ef)

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