Changes

Summary

1. update UserDataset for friendship test (details)
2. update script to delete Friendship Entity (details)

Commit bd2d7bcec0254e5a7b355f08129a4ce5f2fbf909 by redouane update UserDataset for friendship test
	tests/src/main/java/es/uvigo/esei/dgss/letta/domain/entities/UsersDataset.java
Commit 8d529c420442530de97ed60f30a13c75b484101f by redouane update script to delete Friendship Entity
	tests/src/main/resources/scripts/cleanup.sql