Fix JUnit 5 docs

Author: eddumelendez

docs/test_framework_integration/junit_5.md

@@ -1,7 +1,6 @@
 # Jupiter / JUnit 5
 
-While Testcontainers is tightly coupled with the JUnit 4.x rule API, this module provides
-an API that is based on the [JUnit Jupiter](https://junit.org/junit5/) extension model.
+This module provides an API that is based on the [JUnit Jupiter](https://junit.org/junit5/) extension model.
 
 The extension supports two modes:
 
@@ -58,10 +57,6 @@ using JUnit 5.
 
 ## Limitations
 
-Since this module has a dependency onto JUnit Jupiter and on Testcontainers core, which
-has a dependency onto JUnit 4.x, projects using this module will end up with both, JUnit Jupiter
-and JUnit 4.x in the test classpath.
-
 This extension has only been tested with sequential test execution. Using it with parallel test execution is unsupported and may have unintended side effects.
 
 ## Adding Testcontainers JUnit 5 support to your project dependencies