message: add deprecated comment to type
diff: @@ -184,6 +184,9 @@ declare module '@primer/components' {
  export interface FlashProps extends CommonProps, Omit<React.HTMLAttributes<HTMLDivElement>, 'color'> {
  full?: boolean
  variant?: 'success' | 'default' | 'warning' | 'danger'
  + /**
  + * @deprecated since version 19.0.0
  + */
  scheme?: string
  }
  