Log Message:
py-tzlocal: updated to 2.0.0

2.0.0:

Major differences since 1.5.1
- When no time zone configuration can be find, tzlocal now return UTC.
  This is a major difference from 1.x, where an exception would be raised.
  This change is because Docker images often have no configuration at all,
  and the unix utilities will then default to UTC, so we follow that.
- If tzlocal on Unix finds a timezone name in a /etc config file, then
  tzlocal now verifies that the timezone it fouds has the same offset as
  the local computer is configured with. If it doesn't, something is
  configured incorrectly.
- Get timezone via Termux `getprop` wrapper on Android. It's not officially
  supported because we can't test it, but at least we make an effort.

Minor differences and bug fixes
- Skip comment lines when parsing /etc/timezone.
- Don't load timezone from current directory.
- Now verifies that the config files actually contain something before
  reading them.
- Got rid of a BytesWarning
- Now handles if config file paths exists, but are directories.
- Moved tests out from distributions
- Support wheels