bug Quicklist2 在NodeEncodings赋值时，类型赋错了吧

[919927181]

https://github.com/HDT3213/rdb/blob/master/core/list.go

		if length == model.QuicklistNodeContainerPlain {
			entry, err := dec.readString()
			if err != nil {
				return nil, nil, err
			}
			entries = append(entries, entry)
			detail.NodeEncodings = append(detail.NodeEncodings, model.QuicklistNodeContainerPlain)
		} else if length == model.QuicklistNodeContainerPacked {
			page, lengths, err := dec.readListPack()
			if err != nil {
				return nil, nil, err
			}
			entries = append(entries, page...)
			detail.NodeEncodings = append(detail.NodeEncodings, model.QuicklistNodeContainerPlain)
			detail.ListPackEntrySize = append(detail.ListPackEntrySize, lengths)
		}

如果是model.QuicklistNodeContainerPacked，那么 detail.NodeEncodings = append(detail.NodeEncodings, model.QuicklistNodeContainerPlain) 应该是 QuicklistNodeContainerPacked

[919927181]

https://github.com/HDT3213/rdb/blob/master/memprofiler/list.go

在计算内存时，由于上面NodeEncodings赋的全是QuicklistNodeContainerPlain ，从而导致无法计算listpack

func sizeOfQuicklist2(values [][]byte, detail *model.Quicklist2Detail) int {
	size := 2*sizeOfPointer() + 2*sizeOfLong() + 2*4
	// https://github.com/CN-annotation-team/redis7.0-chinese-annotated/blob/7.0-cn-annotated/src/quicklist.h#L60
	nodeOverhead := 3*sizeOfPointer() + sizeOfLong() + 4
	size += nodeOverhead * len(detail.NodeEncodings)
	for i, enc := range detail.NodeEncodings {
		if enc == model.QuicklistNodeContainerPlain {
			size += sizeOfString(unsafeBytes2Str(values[i]))
		} else {
			// listpack overhead: <total_bytes><size>...<end>
			size += 4 + 2 + 1
			for _, s := range detail.ListPackEntrySize[i] {
				size += int(s)
			}
		}
	}
	return size
}