message: use StringUtil instead of std
diff: @@ -129,7 +129,7 @@ unique_ptr<LocalTableFunctionState> JSONScanLocalState::Init(ExecutionContext &c
  static inline void SkipWhitespace(const char *buffer_ptr, idx_t &buffer_offset, idx_t &buffer_size) {
  for (; buffer_offset != buffer_size; buffer_offset++) {
  - if (!std::isspace(buffer_ptr[buffer_offset])) {
  + if (!StringUtil::CharacterIsSpace(buffer_ptr[buffer_offset])) {
  break;
  }
  }
  