[destination-databricks] upgrade legacy JDBC driver to latest

### Connector Name destination-databricks ### Connector Version 2.6.40 ### What step the error happened? Configuring a new connector ### Relevant information The connector currently uses the legacy Simba JDBC driver v2.6.40, which Databricks has deprecated. they now provides their own JDBC driver v3.x as officially the recommended replacement. Migrating to the Databricks-written driver would improve long-term supportability and unlock improvements such as Unity Catalog support, faster large-result retrieval, and active maintenance. ### Relevant log output ```shell ``` ### Contribute - [x] Yes, I want to contribute --- **Internal Tracking:** https://github.com/airbytehq/oncall/issues/12788