Bump org.junit.platform:junit-platform-launcher from 1.11.4 to 6.1.1

Bumps [org.junit.platform:junit-platform-launcher](https://github.com/junit-team/junit-framework) from 1.11.4 to 6.1.1.
- [Release notes](https://github.com/junit-team/junit-framework/releases)
- [Commits](https://github.com/junit-team/junit-framework/commits/r6.1.1)

---
updated-dependencies:
- dependency-name: org.junit.platform:junit-platform-launcher
  dependency-version: 6.1.1
  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

@@ -2,7 +2,7 @@
 jspecify = "1.0.0"
 jackson = "2.18.2"
 junit = "5.11.4"
-junit-platform = "1.11.4"
+junit-platform = "6.1.1"
 assertj = "3.27.0"
 
 spotless = "7.0.2"