Bump org.testng:testng from 7.11.0 to 7.12.0

Bumps [org.testng:testng](https://github.com/testng-team/testng) from 7.11.0 to 7.12.0.
- [Release notes](https://github.com/testng-team/testng/releases)
- [Changelog](https://github.com/testng-team/testng/blob/master/CHANGES.txt)
- [Commits](testng-team/testng@7.11.0...7.12.0)

---
updated-dependencies:
- dependency-name: org.testng:testng
  dependency-version: 7.12.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

server/tck/pom.xml

@@ -107,7 +107,7 @@
             <groupId>org.testng</groupId>
             <artifactId>testng</artifactId>
             <scope>compile</scope>
-            <version>7.11.0</version>
+            <version>7.12.0</version>
         </dependency>
     </dependencies>