Add support for new junit-jupiter artifact ID of JUnit 5

[tlinkowski]

Currently, we handle JUnit 5 by only handling an explicit dependency on junit-jupiter-api:

gradle-modules-plugin/src/main/java/org/javamodularity/moduleplugin/TestEngine.java

Lines 9 to 21 in 54b55d2

	public enum TestEngine {
	JUNIT_4("junit", "junit", "junit", "junit"),
	JUNIT_5("org.junit.jupiter", "junit-jupiter-api", "org.junit.jupiter.api", "org.junit.platform.commons"),
	TESTNG("org.testng", "testng", "testng", "testng");
	private final String groupId;
	private final String artifactId;
	public final String moduleName;
	public final String addOpens;
	TestEngine(String groupId, String artifactId, String moduleName, String addOpens) {

However, since JUnit 5.4, a new aggregate junit-jupiter artifact is available.

We should handle this artifact in the same way as we handle junit-jupiter-api.

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Issue inspired by #129.

[siordache]

Implemented by #152