chore(deps): bump next from 14.2.35 to 15.5.14
Bumps next from 14.2.35 to 15.5.14. Updates all payments-next code for Next.js 15 breaking changes: - Server Actions must be async functions - headers() and cookies() are now async - params and searchParams in page/layout components are Promise-wrapped - useParams() return type includes undefined values - Widened param/searchParams types across actions and utilities