Fix missing imports in ConfigPropertiesTest

Author: Houssam El Mansouri

extensions/hibernate-orm/deployment/src/test/java/io/quarkus/hibernate/orm/config/properties/ConfigPropertiesTest.java

@@ -2,11 +2,14 @@
 
 import static org.assertj.core.api.Assertions.assertThat;
 
+import java.util.List;
+
 import jakarta.inject.Inject;
 import jakarta.transaction.Transactional;
 
 import org.hibernate.FlushMode;
 import org.hibernate.Session;
+import org.hibernate.cfg.AvailableSettings;
 import org.jboss.shrinkwrap.api.ShrinkWrap;
 import org.jboss.shrinkwrap.api.spec.JavaArchive;
 import org.junit.jupiter.api.Test;