message: shuffle_vector: constify more
diff: @@ -145,7 +145,7 @@ public:
  inline bool ATTRIBUTE_ALWAYS_INLINE localRefill() {
  uint32_t addedCapacity = 0;
  - auto miniheapCount = _attachedMiniheaps.size();
  + const auto miniheapCount = _attachedMiniheaps.size();
  for (uint32_t i = 0; i < miniheapCount && !isFull(); i++, _attachedOff++) {
  if (_attachedOff >= miniheapCount) {
  _attachedOff = 0;
  