Update dependency @gitlab/ui to ^86.4.0

This MR contains the following updates:

Package	Type	Update	Change
@gitlab/ui	dependencies	minor	^86.0.1 -> ^86.4.0

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

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Release Notes

gitlab-org/gitlab-ui (@​gitlab/ui)

v86.4.0

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Features

• DesignTokens: add label design tokens (0e1c838)
• GlLabel: add label design tokens to GlLabel (dbf3369)

86.3.1 (2024-07-09)

Bug Fixes

• use neutral colors for action neutral background default token (16449f6)

v86.3.1

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Bug Fixes

• use neutral colors for action neutral background default token (16449f6)

v86.3.0

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Features

• GlDrawer: Use color design tokens (1be0995)

v86.2.0

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Features

• DesignTokens: add shadow color design tokens (4a6e594)

v86.1.0

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Features

• Tailwind: add brand colors to tailwind (f8f864b)

86.0.2 (2024-07-05)

Bug Fixes

• use prettier config for style-dictionary prettier action (46ae3a9)

86.0.1 (2024-07-04)

Bug Fixes

• Make sure npm release process has util migration script (8f1ee46)

v86.0.2

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Bug Fixes

• use prettier config for style-dictionary prettier action (46ae3a9)

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