fix: update table_name and schema on dataset editor (#11218)

* fix dataset editor for updating table_name and schema

* update test

* remove table_name from restrict list

* fix pylint

* fix cypress test

* fix test

superset-frontend/src/datasource/DatasourceModal.tsx

@@ -89,6 +89,9 @@ const DatasourceModal: FunctionComponent<DatasourceModalProps> = ({
       postPayload: {
         data: {
           ...currentDatasource,
+          schema:
+            currentDatasource.databaseSelector?.schema ||
+            currentDatasource.tableSelector?.schema,
           metrics: currentDatasource?.metrics?.map(
             (metric: Record<string, unknown>) => ({
               ...metric,