Fix accessibility violation for AnnouncedContext Polite Story (#6442)
Fix accessibility violation for AnnouncedContext Polite Story (#6442)

Co-authored-by: Eric Soderberg <7357255ec89aa29cb38b14d4ed1295aca420bf0b@hpe.com>
grommet/grommet,grommet/grommet,grommet/grommet