Set generated keys to true to make postgres dialect tests not fail

Author: Jorgen-5

klass-shared/src/main/resources/application-postgres-embedded.properties

@@ -3,4 +3,4 @@ spring.flyway.enabled=false
 spring.jpa.hibernate.ddl-auto=create-drop
 spring.jpa.show-sql=true
 # Hibernate 6 compatibility - disable RETURNING clause
-spring.jpa.properties.hibernate.jdbc.use_get_generated_keys=false
+spring.jpa.properties.hibernate.jdbc.use_get_generated_keys=true