message: Fix type definition for HeaderLinkProps and SideNavLinkProps
diff: @@ -59,7 +59,7 @@ declare module '@primer/components' {
  export interface HeaderItemProps extends CommonProps, BorderProps, Omit<React.HTMLAttributes<HTMLDivElement>, 'color'> {
  full?: boolean;
  }
  - export interface HeaderLinkProps extends CommonProps, BorderProps, TypographyProps, Omit<React.HTMLAttributes<HTMLAnchorElement>, 'color'> {}
  + export interface HeaderLinkProps extends CommonProps, BorderProps, TypographyProps, Omit<React.AnchorHTMLAttributes<HTMLAnchorElement>, 'color'> {}
  export const Header: React.FunctionComponent<HeaderProps> & {
  Item: React.FunctionComponent<HeaderItemProps>
  @@ -381,8 +381,7 @@ declare module '@primer/components' {
  export interface SideNavLinkProps
  extends CommonProps,
  TypographyProps,
  - LinkProps,
  - Omit<React.HTMLAttributes<HTMLAnchorElement>, 'color'> {
  + LinkProps {
  selected?: boolean
  variant?: 'normal' | 'full'
  }
  