Log Message:
py-pathlib2: updated to 2.3.6

Version 2.3.6

- Fix minor unicode bugs in with_name and with_suffix. Many thanks to
  ppentchev for reporting and for providing a fix.

- Fix a few minor bugs.

- Allow unicode file paths on systems that support it
  (note: unicode file paths will not work on Windows
  due a broken filesystem encoder on Windows on Python 2).

- Remove travis and add github actions for regression testing.

- Fix mypy warnings.