Use renamed Testcontainers JUnit artifact for v2

Author: Copilot

pom.xml

@@ -121,7 +121,7 @@
     </dependency>
     <dependency>
       <groupId>org.testcontainers</groupId>
-      <artifactId>junit-jupiter</artifactId>
+      <artifactId>testcontainers-junit-jupiter</artifactId>
       <version>${testcontainers.version}</version>
       <scope>test</scope>
     </dependency>