Bump org.junit:junit-bom from 5.11.3 to 5.13.1

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit5) from 5.11.3 to 5.13.1.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit-framework@r5.11.3...r5.13.1)

---
updated-dependencies:
- dependency-name: org.junit:junit-bom
  dependency-version: 5.13.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -8,7 +8,7 @@ immutables = "2.10.1"
 jackson = "2.18.1"
 jetbrains = "26.0.1"
 jmh = "1.37"
-junit = "5.11.3"
+junit = "5.13.1"
 opencsv = "5.9"
 simpleflatmapper = "8.2.3"
 supercsv = "2.4.0"