[ZRH-2026] Workshop rooms, HCL-Software sponsor, sold-out update#15860

romanoroth wants to merge 4 commits intodevopsdays:maindevopsdays/devopsdays-web:mainfrom

romanoroth:ZRH2026WorkShopRoomsAndSponsoringromanoroth/devopsdays-web:ZRH2026WorkShopRoomsAndSponsoringCopy head branch name to clipboard