Bump org.junit:junit-bom from 5.12.2 to 5.13.0

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit5) from 5.12.2 to 5.13.0.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit-framework@r5.12.2...r5.13.0)

---
updated-dependencies:
- dependency-name: org.junit:junit-bom
  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

@@ -33,7 +33,7 @@ dependencies {
   runtimeOnly("ch.qos.logback:logback-classic")
   implementation("com.h2database:h2")
 
-  testImplementation(platform("org.junit:junit-bom:5.12.2"))
+  testImplementation(platform("org.junit:junit-bom:5.13.0"))
   testImplementation("org.junit.jupiter:junit-jupiter")
   testImplementation("io.strikt:strikt-core:0.35.1")
   testImplementation("io.micronaut.test:micronaut-test-rest-assured")