Bump the dependencies group across 1 directory with 2 updates

Bumps the dependencies group with 2 updates in the / directory: gradle-wrapper and [org.junit:junit-bom](https://github.com/junit-team/junit-framework).


Updates `gradle-wrapper` from 9.0.0 to 9.3.1

Updates `org.junit:junit-bom` from 5.14.3 to 6.0.3
- [Release notes](https://github.com/junit-team/junit-framework/releases)
- [Commits](junit-team/junit-framework@r5.14.3...r6.0.3)

---
updated-dependencies:
- dependency-name: gradle-wrapper
  dependency-version: 9.3.1
  dependency-type: direct:production
  update-type: version-update:semver-minor
  dependency-group: dependencies
- dependency-name: org.junit:junit-bom
  dependency-version: 6.0.3
  dependency-type: direct:production
  update-type: version-update:semver-major
  dependency-group: dependencies
...

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

Author: dependabot[bot]

gradle/libs.versions.toml

@@ -3,7 +3,7 @@ kotlin = "2.1.21" # Mainly for CI, it can be rewritten by environment variable.
 jackson = "2.21.0"
 
 # test libs
-junit = "5.14.3"
+junit = "6.0.3"
 
 [libraries]
 kotlin-stdlib = { module = "org.jetbrains.kotlin:kotlin-stdlib" }

gradle/wrapper/gradle-wrapper.jar

@@ -1,6 +1,6 @@
 distributionBase=GRADLE_USER_HOME
 distributionPath=wrapper/dists
-distributionUrl=https\://services.gradle.org/distributions/gradle-9.0.0-bin.zip
+distributionUrl=https\://services.gradle.org/distributions/gradle-9.3.1-bin.zip
 networkTimeout=10000
 validateDistributionUrl=true
 zipStoreBase=GRADLE_USER_HOME