Bump org.junit.jupiter:junit-jupiter from 5.12.0 to 5.12.1 in /libcobj (#609)

Bumps [org.junit.jupiter:junit-jupiter](https://github.com/junit-team/junit5) from 5.12.0 to 5.12.1.
- [Release notes](https://github.com/junit-team/junit5/releases)
- [Commits](junit-team/junit5@r5.12.0...r5.12.1)

---
updated-dependencies:
- dependency-name: org.junit.jupiter:junit-jupiter
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

libcobj/app/build.gradle.kts

@@ -34,7 +34,7 @@ dependencies {
     implementation("com.google.guava:guava:33.4.0-jre")
     implementation("org.xerial:sqlite-jdbc:3.49.1.0")
     implementation("commons-cli:commons-cli:1.9.0")
-    testImplementation("org.junit.jupiter:junit-jupiter:5.12.0")
+    testImplementation("org.junit.jupiter:junit-jupiter:5.12.1")
     testRuntimeOnly("org.junit.platform:junit-platform-launcher")
     implementation("org.json:json:20250107")
     spotbugs("com.github.spotbugs:spotbugs:4.8.6")