chore: junit update

Author: SebastianKuxhaus

build.gradle

@@ -11,7 +11,7 @@ subprojects {
     java.toolchain.languageVersion = JavaLanguageVersion.of(8)
 
     ext {
-        junitVersion   = '5.8.2'  // https://search.maven.org/artifact/org.junit.jupiter/junit-jupiter-api
+        junitVersion   = '5.9.3'  // https://search.maven.org/artifact/org.junit.jupiter/junit-jupiter-api
         logbackVersion = '1.3.7'  // https://search.maven.org/artifact/ch.qos.logback/logback-core
         log4j2Version  = '2.20.0' // https://search.maven.org/artifact/org.apache.logging.log4j/log4j-core
         slf4jVersion   = '2.0.7'  // https://search.maven.org/artifact/org.slf4j/slf4j-api