Bump testng from 6.14.3 to 7.7.0 in /setup-examples/maven

Bumps [testng](https://github.com/cbeust/testng) from 6.14.3 to 7.7.0.
- [Release notes](https://github.com/cbeust/testng/releases)
- [Changelog](https://github.com/cbeust/testng/blob/master/CHANGES.txt)
- [Commits](testng-team/testng@6.14.3...7.7.0)

---
updated-dependencies:
- dependency-name: org.testng:testng
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <support@github.com>

setup-examples/maven/pom.xml

@@ -43,7 +43,7 @@
         <dependency>
             <groupId>org.testng</groupId>
             <artifactId>testng</artifactId>
-            <version>6.14.3</version>
+            <version>7.7.0</version>
         </dependency>
         <dependency>
             <groupId>jakarta.validation</groupId>