fix(user): improve imports and update getAuthorities method to use Set

Author: Ignorancio

src/main/java/com/example/store/user/infrastructure/entity/UserEntity.java

@@ -7,7 +7,10 @@
 import org.springframework.security.core.authority.SimpleGrantedAuthority;
 import org.springframework.security.core.userdetails.UserDetails;
 
-import java.util.*;
+import java.util.Collection;
+import java.util.Set;
+import java.util.UUID;
+import java.util.stream.Collectors;
 
 @Builder
 @NoArgsConstructor
@@ -23,7 +26,7 @@ public class UserEntity implements UserDetails {
     @GeneratedValue
     private UUID id;
 
-    @Column(nullable = false,unique = true)
+    @Column(nullable = false, unique = true)
     private String email;
 
     @Column(nullable = false)
@@ -36,7 +39,7 @@ public class UserEntity implements UserDetails {
     public Collection<? extends GrantedAuthority> getAuthorities() {
         return roles.stream()
                 .map(role -> new SimpleGrantedAuthority("ROLE_" + role.name()))
-                .toList();
+                .collect(Collectors.toSet());
     }
 
     @Override