build(gradle): Bump junit_version from 5.11.4 to 5.12.0

Bumps `junit_version` from 5.11.4 to 5.12.0.

Updates `org.junit.jupiter:junit-jupiter` 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)

Updates `org.junit.jupiter:junit-jupiter-api` 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)

Updates `org.junit.jupiter:junit-jupiter-params` 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.jupiter:junit-jupiter
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.junit.jupiter:junit-jupiter-api
  dependency-type: direct:production
  update-type: version-update:semver-minor
- dependency-name: org.junit.jupiter:junit-jupiter-params
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

build.gradle

@@ -30,7 +30,7 @@ subprojects {
 
     // Shared dependency versions
     ext.freefair_version = '8.12.2'
-    ext.junit_version = '5.11.4'
+    ext.junit_version = '5.12.0'
     ext.log4j_version = '2.24.3'
     ext.mockito_version = '5.2.0'
     ext.spark_version = '3.5.0'