Bump com.singlestore:singlestore-jdbc-client from 1.2.8 to 1.2.9

Bumps [com.singlestore:singlestore-jdbc-client](https://github.com/memsql/S2-JDBC-Connector) from 1.2.8 to 1.2.9.
- [Release notes](https://github.com/memsql/S2-JDBC-Connector/releases)
- [Changelog](https://github.com/memsql/S2-JDBC-Connector/blob/master/CHANGELOG.md)
- [Commits](memsql/S2-JDBC-Connector@v1.2.8...v1.2.9)

---
updated-dependencies:
- dependency-name: com.singlestore:singlestore-jdbc-client
  dependency-version: 1.2.9
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

plugin/trino-singlestore/pom.xml

@@ -29,7 +29,7 @@
         <dependency>
             <groupId>com.singlestore</groupId>
             <artifactId>singlestore-jdbc-client</artifactId>
-            <version>1.2.8</version>
+            <version>1.2.9</version>
         </dependency>
 
         <dependency>