Fix password verification logic in UserService

Corrects the password verification by comparing the provided old password with the user's actual stored password instead of the new password.

aconnect/src/main/java/com/mfsys/aconnect/usermanagement/service/UserService.java

@@ -50,7 +50,7 @@ public class UserService {
     User user = userRepository.findById(request.getUserId())
             .orElseThrow(() -> new EntityNotFoundException("User not found with ID: " + request.getUserId()));
 
-    boolean isPasswordValid = PasswordEncryptionService.verifyPassword(request.getOldPassword(), request.getNewPassword());
+    boolean isPasswordValid = PasswordEncryptionService.verifyPassword(request.getOldPassword(), user.getPassword());
     if(!isPasswordValid) {
       throw new OldPasswordNotMatch(request.getPorOrgacode());
     }