message: Fix DropdownProps type intersections
diff: @@ -145,7 +145,7 @@ declare module '@primer/components' {
  export const StyledOcticon: React.FunctionComponent<StyledOcticonProps>
  - export interface DropdownProps extends React.Props<any>, StyledSystem.ColorProps, StyledSystem.SpaceProps, ButtonProps {
  + export interface DropdownProps extends React.Props<any>, StyledSystem.ColorProps, StyledSystem.SpaceProps, Omit<ButtonProps, 'title'> {
  as?: React.ReactType
  title?: string | React.ReactNode
  }
  