⬆️ Bump org.junit:junit-bom from 5.13.4 to 6.0.0

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit-framework) 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:junit-bom
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -9,7 +9,7 @@ commons-io = "commons-io:commons-io:2.20.0"
 fontmetrics = "org.javastack:fontmetrics:1.1.0"
 guava = "com.google.guava:guava:33.5.0-jre"
 j2html = "com.j2html:j2html:1.6.0"
-junit-bom = "org.junit:junit-bom:5.13.4"
+junit-bom = "org.junit:junit-bom:6.0.0"
 maven-artifact = { module = "org.apache.maven:maven-artifact", version.ref = "maven" }
 maven-core = { module = "org.apache.maven:maven-core", version.ref = "maven" }
 maven-plugin-tools = "org.apache.maven.plugin-tools:maven-plugin-annotations:3.15.2"