update generator

paper-api-generator/build.gradle.kts

@@ -16,6 +16,8 @@ dependencies {
     implementation(project(":paper-api"))
     implementation("io.github.classgraph:classgraph:4.8.47")
     implementation("org.jetbrains:annotations:24.0.1")
+    testImplementation("org.junit.jupiter:junit-jupiter:5.10.2")
+    testRuntimeOnly("org.junit.platform:junit-platform-launcher")
 }
 
 tasks.register<JavaExec>("generate") {
@@ -24,5 +26,9 @@ tasks.register<JavaExec>("generate") {
     args(projectDir.toPath().resolve("generated").toString())
 }
 
+tasks.test {
+    useJUnitPlatform()
+}
+
 group = "io.papermc.paper"
 version = "1.0-SNAPSHOT"