message: tools: add to maintainers in check_format.py for owned directories
diff: @@ -923,7 +923,7 @@ if __name__ == "__main__":
  owned = []
  maintainers = [
  '@mattklein123', '@htuch', '@alyssawilk', '@zuercher', '@lizan', '@snowp', '@asraa',
  - '@junr03', '@dio', '@jmarantz'
  + '@yavlasov', '@junr03', '@dio', '@jmarantz'
  ]
  try:
  