[Renovate Bot] Update dependency org.testng:testng to v7

Signed-off-by: Renovate Bot for Gradle <[email protected]>

gradle/libs.versions.toml

@@ -6,7 +6,7 @@ junitPlatformLauncher = "1.11.2"
 mockito = "4.11.0"
 spock1 = "1.3-groovy-2.5"
 spock2 = "2.3-groovy-3.0"
-testNg = "5.11.2"
+testNg = "7.10.2"
 
 [libraries]
 spock-bom = { module = "org.spockframework:spock-bom", version.ref = "spock2" }