Release v2.3.4

🎄 Enhancements

• use wal write batch to optimize performance.
• optimize memory usage.

🎠 Community

• Thanks to @LindaSummer
  • add auto merge(f31d45e)
• Thanks to @justforward
  • clarify file error(b006126)
• Thanks to @lyonzhi
  • approce test case for windows(7d8c6c0)
• Thanks to @246859
  • fix(watch): make channnel that DB.Watch returns is readonly (#294)