Bump junitVersion from 5.12.0 to 5.13.0

Bumps `junitVersion` from 5.12.0 to 5.13.0.

Updates `org.junit.jupiter:junit-jupiter-api` from 5.12.0 to 5.13.0
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit-framework@r5.12.0...r5.13.0)

Updates `org.junit.jupiter:junit-jupiter-params` from 5.12.0 to 5.13.0
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit-framework@r5.12.0...r5.13.0)

Updates `org.junit.jupiter:junit-jupiter-engine` from 5.12.0 to 5.13.0
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit-framework@r5.12.0...r5.13.0)

---
updated-dependencies:
- dependency-name: org.junit.jupiter:junit-jupiter-api
  dependency-version: 5.13.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.junit.jupiter:junit-jupiter-params
  dependency-version: 5.13.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.junit.jupiter:junit-jupiter-engine
  dependency-version: 5.13.0
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

build.gradle.kts

@@ -32,7 +32,7 @@ repositories {
 }
 
 val creekVersion = "0.4.2-SNAPSHOT"
-val junitVersion = "5.12.0"
+val junitVersion = "5.13.0"
 val junitPioneerVersion = "2.3.0"
 val mockitoVersion = "5.15.2"
 val jmhVersion = "1.37"