Bump org.junit:junit-bom from 5.11.4 to 5.12.0

Bumps [org.junit:junit-bom](https://github.com/junit-team/junit5) from 5.11.4 to 5.12.0.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.11.4...r5.12.0)

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

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

Author: dependabot[bot]

build.gradle

@@ -70,7 +70,7 @@ dependencies {
     implementation group: 'org.freemarker', name: 'freemarker', version: '2.3.34'
 
     testImplementation project.deps.gocdPluginApi
-    testImplementation platform('org.junit:junit-bom:5.11.4')
+    testImplementation platform('org.junit:junit-bom:5.12.0')
     testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-api'
     testImplementation group: 'org.junit.jupiter', name: 'junit-jupiter-params'
     testRuntimeOnly group: 'org.junit.jupiter', name: 'junit-jupiter-engine'