Bump testng from 7.0.0 to 7.5.1

Bumps [testng](https://github.com/cbeust/testng) from 7.0.0 to 7.5.1.
- [Release notes](https://github.com/cbeust/testng/releases)
- [Changelog](https://github.com/testng-team/testng/blob/master/CHANGES.txt)
- [Commits](https://github.com/cbeust/testng/compare/7.0.0...7.5.1)

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

Signed-off-by: dependabot[bot] <support@github.com>
diff --git a/pom.xml b/pom.xml
index 9a6667a..219aec6 100644
--- a/pom.xml
+++ b/pom.xml
@@ -206,7 +206,7 @@
         <storm.version>1.2.4</storm.version>
         <sun-jersey-bundle.version>1.19</sun-jersey-bundle.version>
         <tomcat.embed.version>8.5.89</tomcat.embed.version>
-        <testng.version>7.0.0</testng.version>
+        <testng.version>7.5.1</testng.version>
         <velocity.version>2.3</velocity.version>
         <zookeeper.version>3.5.5</zookeeper.version>
         <codehaus.woodstox.stax2api.version>4.2.1</codehaus.woodstox.stax2api.version>