build(deps): bump testng from 7.4.0 to 7.7.0

Bumps [testng](https://github.com/cbeust/testng) from 7.4.0 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@7.4.0...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

@@ -22,7 +22,7 @@
         <!-- >>> Replace this with the name of your SDK's github repository -->
         <git-repository-name>java-sdk</git-repository-name>
 
-        <testng-version>7.4.0</testng-version>
+        <testng-version>7.7.0</testng-version>
         <okhttp3-version>4.9.0</okhttp3-version>
         <surefire-version>3.0.0-M3</surefire-version>
         <jacoco-plugin-version>0.8.5</jacoco-plugin-version>