gradle: 8.4

buildSrc/build.gradle.kts

@@ -1,3 +1,5 @@
+import org.jetbrains.kotlin.gradle.tasks.KotlinCompile
+
 plugins {
   `kotlin-dsl`
 }
@@ -10,3 +12,13 @@ dependencies {
   implementation("org.jetbrains.kotlin:kotlin-gradle-plugin:1.9.10")
   implementation("org.jetbrains.kotlin:kotlin-serialization:1.9.10")
 }
+
+java {
+  val javaVersion = JavaVersion.toVersion(17)
+  sourceCompatibility = javaVersion
+  targetCompatibility = javaVersion
+}
+
+tasks.withType<KotlinCompile> {
+  kotlinOptions.jvmTarget = "17"
+}