Minor polishing

Author: Haarolean

api/src/main/java/io/kafbat/ui/controller/AccessController.java

@@ -45,7 +45,7 @@ public Mono<ResponseEntity<AuthenticationInfoDTO>> getUserAuthInfo(ServerWebExch
         .map(SecurityContext::getAuthentication)
         .map(Principal::getName);
 
-    AuthenticationInfoDTO.AuthenticationInfoDTOBuilder<?, ?> builder = AuthenticationInfoDTO.builder()
+    var builder = AuthenticationInfoDTO.builder()
         .rbacEnabled(accessControlService.isRbacEnabled());
 
     return userName