[docs] Add a missing bracket in the migration-v4 guide (#30616)
[docs] Add a missing bracket in the migration-v4 guide (#30616)


oliviertassinari/material-ui,oliviertassinari/material-ui,mui-org/material-ui,oliviertassinari/material-ui,mui-org/material-ui,rscnt/material-ui,mui-org/material-ui,rscnt/material-ui,rscnt/material-ui