Log Message:
py-pyftpdlib: updated to 1.5.9

Version: 1.5.9 - 2023-10-25
===========================

**Enhancements**

- use `ruff` code style checker instead of flake8 + isort (much faster +
  makes many more code quality checks).

**Bug fixes**

- client connection may be reset in PASV/EPSV mode during TLS handshake.
  (patch by Benedikt McMullin)
- possible infinite wait in Epoll  (patch by @stat1c-void)
- possible infinite traceback printing in DTPHandler (patch by
  @stat1c-void)
- (CRITICAL) bugfix for TLS disconnect causing 100% CPU usage. (patch by
  @hakai)
- close connection on SSL EOF error, instead of erroneously replying with
  "226 Transfer completed."