Move K6 tests to JUnit Jupiter (#10742)

Author: eddumelendez

modules/k6/build.gradle

@@ -3,5 +3,12 @@ description = "Testcontainers :: k6"
 dependencies {
     api project(':testcontainers')
 
+    testRuntimeOnly 'org.junit.platform:junit-platform-launcher:1.11.0'
+
+    testImplementation 'org.junit.jupiter:junit-jupiter:5.13.4'
     testImplementation 'org.assertj:assertj-core:3.27.4'
 }
+
+test {
+    useJUnitPlatform()
+}

modules/k6/src/test/java/org/testcontainers/k6/K6ContainerTests.java

@@ -1,17 +1,17 @@
 package org.testcontainers.k6;
 
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import org.testcontainers.containers.output.WaitingConsumer;
 import org.testcontainers.utility.MountableFile;
 
 import java.util.concurrent.TimeUnit;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
-public class K6ContainerTests {
+class K6ContainerTests {
 
     @Test
-    public void k6StandardTest() throws Exception {
+    void k6StandardTest() throws Exception {
         try (
             // standard_k6 {
             K6Container container = new K6Container("grafana/k6:0.49.0")