用于JUnit4的JUnit5老式引擎错误：不支持的版本：JUNIT：JUNIT：4.11。请升级到版本4.12或更高版本。如何降级？
Internal Error occurred. org.junit.platform.commons.JUnitException: TestEngine with ID 'junit-vintage' failed to discover tests at org.junit.platform.launcher.core.EngineDiscoveryOrchestrator.disc
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