Move Grafana tests to JUnit Jupiter (#10737)

Author: eddumelendez

modules/grafana/build.gradle

@@ -3,13 +3,20 @@ description = "Testcontainers :: Grafana"
 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'
     testImplementation 'io.rest-assured:rest-assured:5.5.6'
     testImplementation 'io.micrometer:micrometer-registry-otlp:1.15.3'
-    testImplementation 'uk.org.webcompere:system-stubs-junit4:2.1.8'
+    testImplementation 'uk.org.webcompere:system-stubs-jupiter:2.1.8'
 
     testImplementation platform('io.opentelemetry:opentelemetry-bom:1.53.0')
     testImplementation 'io.opentelemetry:opentelemetry-api'
     testImplementation 'io.opentelemetry:opentelemetry-sdk'
     testImplementation 'io.opentelemetry:opentelemetry-exporter-otlp'
 }
+
+test {
+    useJUnitPlatform()
+}

modules/grafana/src/test/java/org/testcontainers/grafana/LgtmStackContainerTest.java

@@ -21,18 +21,18 @@
 import io.restassured.RestAssured;
 import io.restassured.response.Response;
 import org.awaitility.Awaitility;
-import org.junit.Test;
+import org.junit.jupiter.api.Test;
 import uk.org.webcompere.systemstubs.SystemStubs;
 
 import java.time.Duration;
 import java.util.concurrent.TimeUnit;
 
 import static org.assertj.core.api.Assertions.assertThat;
 
-public class LgtmStackContainerTest {
+class LgtmStackContainerTest {
 
     @Test
-    public void shouldPublishMetricsTracesAndLogs() throws Exception {
+    void shouldPublishMetricsTracesAndLogs() throws Exception {
         try ( // container {
             LgtmStackContainer lgtm = new LgtmStackContainer("grafana/otel-lgtm:0.11.1")
             // }