chore(deps): update dependency @gitlab/ui to v30.2.0

This MR contains the following updates:

Package	Type	Update	Change
@gitlab/ui (source)	dependencies	minor	30.1.0 -> 30.2.0

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

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Release Notes

gitlab-org/gitlab-ui

v30.2.0

Compare Source

Features

• add gl-md-max-w-30p and gl-md-w-50p classes (73336c1)
• remove gl-flex-grow-4 class (60e0b5c)

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