Bump junit.version from 5.13.4 to 6.0.0

Bumps `junit.version` from 5.13.4 to 6.0.0.

Updates `org.junit.jupiter:junit-jupiter-api` from 5.13.4 to 6.0.0
- [Release notes](https://github.com/junit-team/junit-framework/releases)
- [Commits](junit-team/junit-framework@r5.13.4...r6.0.0)

Updates `org.junit.jupiter:junit-jupiter-engine` from 5.13.4 to 6.0.0
- [Release notes](https://github.com/junit-team/junit-framework/releases)
- [Commits](junit-team/junit-framework@r5.13.4...r6.0.0)

---
updated-dependencies:
- dependency-name: org.junit.jupiter:junit-jupiter-api
  dependency-version: 6.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
- dependency-name: org.junit.jupiter:junit-jupiter-engine
  dependency-version: 6.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

pom.xml

@@ -52,7 +52,7 @@
         <sootup.version>2.0.0</sootup.version>
         <opal.version>5.0.0</opal.version>
         <crysl.version>4.0.5</crysl.version>
-        <junit.version>5.13.4</junit.version>
+        <junit.version>6.0.0</junit.version>
         <guava.version>33.5.0-jre</guava.version>
     </properties>