make junit5 an API dependency since it's used in generated code

Author: martinbonnin

kctf-runtime/build.gradle.kts

@@ -9,8 +9,8 @@ Librarian.module(project)
 dependencies {
   api(libs.kotlin.compiler.internal.test.framework)
   api(libs.kotlin.compiler)
-
-  implementation(libs.kotlin.test.junit5)
+  api(libs.kotlin.test.junit5)
+  
   implementation(libs.kotlin.reflect)
   implementation(libs.kotlin.script.runtime)
   implementation(libs.kotlin.annotations.jvm)