Bump testng from 7.1.0 to 7.3.0

Bumps [testng](https://github.com/cbeust/testng) from 7.1.0 to 7.3.0.
- [Release notes](https://github.com/cbeust/testng/releases)
- [Changelog](https://github.com/cbeust/testng/blob/master/CHANGES.txt)
- [Commits](https://github.com/cbeust/testng/commits)

Signed-off-by: dependabot-preview[bot] <[email protected]>

Author: dependabot-preview[bot]

build.gradle

@@ -28,7 +28,7 @@ dependencies {
     implementation 'com.squareup.okhttp3:okhttp:3.11.0'
     implementation 'com.google.code.gson:gson:2.8.6'
     implementation group: 'ch.qos.logback', name: 'logback-classic', version: '1.2.3'
-    testImplementation group: 'org.testng', name: 'testng', version: '7.1.0'
+    testImplementation group: 'org.testng', name: 'testng', version: '7.3.0'
     testImplementation 'commons-io:commons-io:2.7'
     testImplementation 'org.mockito:mockito-core:3.5.13'
     testImplementation "com.squareup.okhttp3:mockwebserver:4.8.1"