Update dependency @gitlab/ui to v111.9.0

This MR contains the following updates:

Package	Type	Update	Change
@gitlab/ui	dependencies	minor	111.8.1 -> 111.9.0

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

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Release Notes

gitlab-org/gitlab-ui (@​gitlab/ui)

v111.9.0

Compare Source

Features

• GlTooltip: add custom global container selector (691e2b0)

111.8.1 (2025-03-27)

Bug Fixes

• GlLineChart, GlAreaChart, GlStackedColumn: Fix tooltip updates (7ac5e58)

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