Update dependency @gitlab/ui to v68

This MR contains the following updates:

Package	Type	Update	Change
@gitlab/ui	dependencies	major	^67.5.2 -> ^68.3.0

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

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Release Notes

gitlab-org/gitlab-ui

v68.3.0

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Features

• GlDuoChat: support for slash commands (2d3eee1)

68.2.1 (2023-11-10)

Bug Fixes

• GlPopover: increase hide delay (7fb02fa)

v68.2.1

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Bug Fixes

• GlPopover: increase hide delay (7fb02fa)

v68.2.0

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Bug Fixes

• css: remove vendor-prefixed property (de23bf4)
• GlBroadcastMessage: wrap long words (25ad510)

Features

• css: add gl-overflow-anywhere utility (3b26c8c)

v68.1.0

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Bug Fixes

• GlDisclosureDropdown: nested dropdown click closes a parent one (896ca20)

Features

• css: Add gl-sm-pr-4 utility (a763496)

v68.0.0

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Features

• GlExperimentBadge: support 'beta' type (927f830)

BREAKING CHANGES

• GlExperimentBadge: To extend the capabilities of the badge, now it suports not only experiments, but also allows to move features to beta state using the same component

67.5.2 (2023-11-06)

Bug Fixes

• css: chart legend display issue in dark mode (ce60a9f)

67.5.1 (2023-11-03)

Bug Fixes

• GlDuoChatMessage: Use nextTick from component instance (4e39ab6)

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