Bump testng from 7.4.0 to 7.7.0 in /driver-kop#52

dependabot[bot] wants to merge 1 commit intomainredpanda-data/openmessaging-benchmark:mainfrom

dependabot/maven/driver-kop/org.testng-testng-7.7.0redpanda-data/openmessaging-benchmark:dependabot/maven/driver-kop/org.testng-testng-7.7.0Copy head branch name to clipboard