Bump testng from 7.0.0-beta3 to 7.5.1

Bumps [testng](https://github.com/cbeust/testng) from 7.0.0-beta3 to 7.5.1.
- [Release notes](https://github.com/cbeust/testng/releases)
- [Changelog](https://github.com/testng-team/testng/blob/master/CHANGES.txt)
- [Commits](https://github.com/cbeust/testng/commits/7.5.1)

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

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

Author: dependabot[bot]

pom.xml

@@ -85,7 +85,7 @@
         <dependency>
             <groupId>org.testng</groupId>
             <artifactId>testng</artifactId>
-            <version>7.0.0-beta3</version>
+            <version>7.5.1</version>
             <scope>compile</scope>
         </dependency>