chore: add missing junit-platform-launcher test runtime-only dependency

Previously, Gradle added the dependency behing the scenes, however it has
been deprecated since 8. Now we should add the dependency explicitly.

See junit-team/junit-framework#4335 (comment)

Signed-off-by: Vladimir Sitnikov <[email protected]>

Author: vlsi

build-logic/jvm/src/main/kotlin/build-logic.test-junit5.gradle.kts

@@ -6,6 +6,9 @@ plugins {
 dependencies {
     testImplementation("org.junit.jupiter:junit-jupiter-api")
     testImplementation("org.junit.jupiter:junit-jupiter-params")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher") {
+        because("It is needed for junit in runtime, see https://github.com/junit-team/junit5/issues/4335#issuecomment-2676780444")
+    }
     testImplementation("org.assertj:assertj-core")
 }
 

sigstore-java/build.gradle.kts

@@ -46,7 +46,6 @@ dependencies {
 
     testImplementation(project(":sigstore-testkit"))
     testImplementation(platform("org.junit:junit-bom:5.12.0"))
-    testImplementation("org.junit.jupiter:junit-jupiter")
 
     testImplementation(platform("org.mockito:mockito-bom:5.14.2"))
     testImplementation("org.mockito:mockito-core")