Update dependency @gitlab/ui to ^72.8.0

This MR contains the following updates:

Package	Type	Update	Change
@gitlab/ui	dependencies	minor	^72.5.1 -> ^72.8.0

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

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Release Notes

gitlab-org/gitlab-ui

v72.8.0

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Features

• GlColumnChart: allow customising chart tooltip (ed6ee9e)

v72.7.0

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Bug Fixes

• GlEmptyState: remove incorrect role from img (9e5d86f)

Features

• css: adds gl-max-w-12 utility class (58254e6)

v72.6.0

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Features

• Avatar: Update design and stacks (cd50241)

72.5.2 (2024-01-11)

Bug Fixes

• GlCollapsibleListbox: Makes scrollable region focusable (1fdbb47)

72.5.1 (2024-01-11)

Bug Fixes

• DesignTokens: use gray-950 for dark color contrast background (58dc59c)

v72.5.2

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Bug Fixes

• GlCollapsibleListbox: Makes scrollable region focusable (1fdbb47)

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