fix: add missing yaml header (#2046)

Co-authored-by: vansangpfiev <[email protected]>

Author: gau-nernst

engine/utils/huggingface_utils.h

@@ -9,6 +9,7 @@
 #include "utils/json_parser_utils.h"
 #include "utils/result.hpp"
 #include "utils/url_parser.h"
+#include "yaml-cpp/yaml.h"
 
 namespace huggingface_utils {