Bump junitVersion from 5.8.2 to 5.9.0 (#72)

Bumps `junitVersion` from 5.8.2 to 5.9.0.

Updates `junit-jupiter-api` from 5.8.2 to 5.9.0
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.8.2...r5.9.0)

Updates `junit-jupiter-params` from 5.8.2 to 5.9.0
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.8.2...r5.9.0)

Updates `junit-jupiter-engine` from 5.8.2 to 5.9.0
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.8.2...r5.9.0)

---
updated-dependencies:
- dependency-name: org.junit.jupiter:junit-jupiter-api
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.junit.jupiter:junit-jupiter-params
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.junit.jupiter:junit-jupiter-engine
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>
Co-authored-by: Andy Coates <8012398+big-andy-coates@users.noreply.github.com>

build.gradle.kts

@@ -64,7 +64,7 @@ subprojects {
 
         set("log4jVersion", "2.18.0")           // https://mvnrepository.com/artifact/org.apache.logging.log4j/log4j-core
         set("guavaVersion", "31.1-jre")       // https://mvnrepository.com/artifact/com.google.guava/guava
-        set("junitVersion", "5.8.2")            // https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-api
+        set("junitVersion", "5.9.0")            // https://mvnrepository.com/artifact/org.junit.jupiter/junit-jupiter-api
         set("junitPioneerVersion", "1.7.1")     // https://mvnrepository.com/artifact/org.junit-pioneer/junit-pioneer
         set("mockitoVersion", "4.6.1")          // https://mvnrepository.com/artifact/org.mockito/mockito-junit-jupiter
         set("hamcrestVersion", "2.2")           // https://mvnrepository.com/artifact/org.hamcrest/hamcrest-core