[Java] Upgrade to JUnit 5.9.3.

Author: mjpt777

build.gradle

@@ -56,7 +56,7 @@ def toolchainLauncher = javaToolchains.launcherFor {
 def checkstyleVersion = '9.3'
 def hamcrestVersion = '2.2'
 def mockitoVersion = '4.11.0'
-def junitVersion = '5.9.2'
+def junitVersion = '5.9.3'
 def jmhVersion = '1.36'
 def agronaVersion = '1.18.1'
 def agronaVersionRange = '[1.18.1,2.0[' // allow any release >= 1.18.1 and < 2.0.0