Bump testng from 6.9.9 to 7.4.0 (#116)

* Bump testng from 6.9.9 to 7.4.0

Bumps [testng](https://github.com/cbeust/testng) from 6.9.9 to 7.4.0.
- [Release notes](https://github.com/cbeust/testng/releases)
- [Changelog](https://github.com/cbeust/testng/blob/master/CHANGES.txt)
- [Commits](testng-team/testng@6.9.9...7.4.0)

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

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

* add junit dependency

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Stefan Seifert <stefanseifert@users.noreply.github.com>

pom.xml

@@ -106,7 +106,12 @@
     <dependency>
       <groupId>org.testng</groupId>
       <artifactId>testng</artifactId>
-      <version>6.9.9</version>
+      <version>7.4.0</version>
+      <scope>test</scope>
+    </dependency>
+    <dependency>
+      <groupId>junit</groupId>
+      <artifactId>junit</artifactId>
       <scope>test</scope>
     </dependency>
     <dependency>