Bump testng from 7.5 to 7.7.0

Bumps [testng](https://github.com/cbeust/testng) from 7.5 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@7.5...7.7.0)

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

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

Author: dependabot[bot]

pom.xml

@@ -24,7 +24,7 @@
 		<maven.surefire.plugin.version>2.9</maven.surefire.plugin.version>
 		<project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
 		<nstest.version>1.1.7</nstest.version>
-		<testng.version>7.5</testng.version>
+		<testng.version>7.7.0</testng.version>
 		<maven.deploy.skip>true</maven.deploy.skip>
 	</properties>