build(deps): bump junitJupiter from 5.13.4 to 6.0.0

Bumps `junitJupiter` from 5.13.4 to 6.0.0.

Updates `org.junit.jupiter:junit-jupiter` 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-params` 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.vintage:junit-vintage-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
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.junit.jupiter:junit-jupiter-params
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
- dependency-name: org.junit.vintage:junit-vintage-engine
  dependency-version: 6.0.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <[email protected]>

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -83,7 +83,7 @@ json = "20250517"
 jsoup = "1.21.2"
 androidTestJunit = "1.3.0"
 # https://github.com/junit-team/junit5/releases/
-junitJupiter = "5.13.4"
+junitJupiter = "6.0.0"
 # https://github.com/junit-team/junit5/releases/ - version numbers differ; changelogs in bundle
 junitPlatformLauncher = "1.13.4"
 # https://github.com/JetBrains/kotlin/releases/