fix: ensure validation for db modal for googlesheets (#19018)
fix: ensure validation for db modal for googlesheets (#19018)

* fix: ensure validation for db modal for googlesheets

* chain async function
airbnb/caravel,zhouyao1994/incubator-superset,airbnb/caravel,airbnb/caravel,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,zhouyao1994/incubator-superset,airbnb/caravel,zhouyao1994/incubator-superset