[JENKINS-48466] Provide JUnit 5 support for JenkinsRule

[basil]

See jenkinsci/jenkins-test-harness#438 for the PR description.

[jetersen]

Any particular reason this was removed from dependency management?

junit-bom does not include a junit version

[jglick]

For the record, parameterized test selection no longer seems to work in plugins (discovered in jenkinsci/workflow-durable-task-step-plugin#323); based on comments in SUREFIRE-2010 I suspect the use of the Jupiter engine (even for JUnit 4 tests) is the cause, and unfortunately apache/maven-surefire#476 is stalled.

[jglick]

Workaround, based on this tip, presuming that the plugin does not in fact contain any Jupiter-based tests:

<build>
    <pluginManagement>
        <plugins>
            <plugin>
                <groupId>org.apache.maven.plugins</groupId>
                <artifactId>maven-surefire-plugin</artifactId>
                <dependencies>
                    <dependency>
                        <groupId>org.apache.maven.surefire</groupId>
                        <artifactId>surefire-junit47</artifactId>
                        <version>${maven-surefire-plugin.version}</version>
                    </dependency>
                </dependencies>
            </plugin>
        </plugins>
    </pluginManagement>
</build>