docs: update masking doc

Author: tianzhou

mintlify/introduction/supported-databases.mdx

@@ -124,8 +124,8 @@ Bytebase officially supports the following major versions for each supported dat
 | DynamoDB           | ✔️                                      | ✔️                               | ✔️                                                                   |                                                                     |                                                 |                                                     |
 | Cosmos DB          | ✔️                                      | ✔️                               | ✔️                                                                   |                                                                     | ✔️                                              |                                                     |
 | **Data Warehouse** |                                         |                                  |                                                                      |                                                                     |                                                 |
-| Snowflake          | ✔️                                      | ✔️                               | ✔️                                                                   | ✔️                                                                  |                                                 | ✔️                                                  |
-| BigQuery           | ✔️                                      | ✔️                               | ✔️                                                                   | ✔️                                                                  |                                                 |                                                     |
+| Snowflake          | ✔️                                      | ✔️                               | ✔️                                                                   | ✔️                                                                  | ✔️                                              | ✔️                                                  |
+| BigQuery           | ✔️                                      | ✔️                               | ✔️                                                                   | ✔️                                                                  | ✔️                                              |                                                     |
 | Redshift           | ✔️                                      | ✔️                               | ✔️                                                                   |                                                                     |                                                 | ✔️                                                  |
 | Hive               | ✔️                                      | ✔️                               | ✔️                                                                   |                                                                     |                                                 |                                                     |
 | ClickHouse         | ✔️                                      | ✔️                               | ✔️                                                                   | ✔️                                                                  |                                                 | ✔️                                                  |