[4.138.0]
Update ghost to 6.6.0
Full Changelog
Added Banner component to Shade design system (#25232) - Rob Lester
Fixed activitypub sidebar navigation active state (#25306) - Jonatan Svennberg
Fixed PRESERVE_ENV to only apply to global teardown (#25280) - Igor Balos
Fixed outdated dashboard links in design and profile modals (#25270) - Troy Ciesco
Added de-CH translations for Comments, Ghost, Portal (#25267) - ashikinoko
Added additional Italian translations for Ghost, Portal (#25260) - Michele Mazzuco
Added Arabic translations to Portal (#25254) - Adam Naji
Updated Bulgarian translations for Portal (#25255) - Yovko Lambrev