Bump org.junit:junit-bom from 5.12.1 to 5.12.2 in the dependencies group

Bumps the dependencies group with 1 update: [org.junit:junit-bom](https://github.com/junit-team/junit5).


Updates `org.junit:junit-bom` from 5.12.1 to 5.12.2
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit-framework@r5.12.1...r5.12.2)

---
updated-dependencies:
- dependency-name: org.junit:junit-bom
  dependency-version: 5.12.2
  dependency-type: direct:production
  update-type: version-update:semver-patch
  dependency-group: dependencies
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -3,7 +3,7 @@ kotlin = "1.9.25" # Mainly for CI, it can be rewritten by environment variable.
 jackson = "2.18.3"
 
 # test libs
-junit = "5.12.1"
+junit = "5.12.2"
 
 [libraries]
 kotlin-stdlib = { module = "org.jetbrains.kotlin:kotlin-stdlib" }