Update dependency org.gradlex:java-module-testing to v1.8#259

jjohannes merged 1 commit intomaingradlex-org/java-module-dependencies:mainfrom

renovate/org.gradlex-java-module-testing-1.xgradlex-org/java-module-dependencies:renovate/org.gradlex-java-module-testing-1.xCopy head branch name to clipboard