Bump org.testng:testng from 7.4.0 to 7.5.1 in /ios

Bumps [org.testng:testng](https://github.com/cbeust/testng) from 7.4.0 to 7.5.1.
- [Release notes](https://github.com/cbeust/testng/releases)
- [Changelog](https://github.com/testng-team/testng/blob/master/CHANGES.txt)
- [Commits](testng-team/testng@7.4.0...7.5.1)

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

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

ios/pom.xml

@@ -15,7 +15,7 @@
         <maven.compiler.source>1.8</maven.compiler.source>
         <maven.compiler.target>1.8</maven.compiler.target>
         <cucumber.version>7.4.1</cucumber.version>
-        <testng.version>7.4.0</testng.version>
+        <testng.version>7.5.1</testng.version>
         <selenium-java.version>4.13.0</selenium-java.version>
         <java-client.version>8.6.0</java-client.version>
         <browserstack-local-java.version>1.0.6</browserstack-local-java.version>