Merge pull request 'fix: delect club without user' (#76) from dev into master

Reviewed-on: #76

src/main/java/fr/titionfire/ffsaf/domain/service/ClubService.java

@@ -287,7 +287,8 @@ public class ClubService {
                             combModel.setClub(null);
                             combModel.setRole(RoleAsso.MEMBRE);
                         }).toList())
-                        .call(list -> (list.isEmpty()) ? Uni.createFrom().voidItem() :
+                        .call(list -> list.stream().noneMatch(m -> m.getUserId() != null) ?
+                                Uni.createFrom().voidItem() :
                                 Uni.join().all(list.stream().filter(m -> m.getUserId() != null)
                                                 .map(m -> keycloakService.clearUser(m.getUserId())).toList())
                                         .andCollectFailures())