Bump testng from 7.7.1 to 7.8.0

Bumps [testng](https://github.com/testng-team/testng) from 7.7.1 to 7.8.0.
- [Release notes](https://github.com/testng-team/testng/releases)
- [Changelog](https://github.com/testng-team/testng/blob/master/CHANGES.txt)
- [Commits](testng-team/testng@7.7.1...7.8.0)

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

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

pom.xml

@@ -379,7 +379,7 @@
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>
-      <version>7.7.1</version>
+      <version>7.8.0</version>
       <scope>test</scope>
     </dependency>
   </dependencies>