Fix dependencies in maven pom.xml

@manticore-projects Please keep pom.xml and build.gradle in sync. 

```
<dependency>
        	<groupId>org.junit.jupiter</groupId>
        	<artifactId>junit-jupiter-api</artifactId>
        	<version>5.7.1</version>
        	<scope>test</scope>
</dependency>
```
mvn build has compile errors.