Update tooling.md to add Delphix

Add Delphix to third-party tools page

Author: viragtripathi

src/current/_includes/v25.1/misc/tooling.md

@@ -105,3 +105,4 @@ For a list of tools supported by the CockroachDB community, see [Third-Party Too
 | Tool | Latest tested version | Support level | Tutorial |
 |-----+------------------------+---------------+----------|
 | [Flowable](https://github.com/flowable/flowable-engine) | 6.4.2 | Full | [Getting Started with Flowable and CockroachDB (external)](https://blog.flowable.org/2019/07/11/getting-started-with-flowable-and-cockroachdb/)
+| [Delphix](https://www.delphix.com/) | 29.0.0.1 | Partner supported | [Provision, mask, and integrate data with Delphix (external)](https://www.delphix.com/blog/modern-database-meets-modern-devops-data-platform)