Log Message:
py-tzlocal: update to 4.3.

4.3 (2023-03-18)
----------------

- Improved the error message when the ZoneInfo cannot be found

- Don't error out because we find multiple possible timezones for
  a symlink.

- More stable on Android/Termux with proot

4.2 (2022-04-02)
----------------

- If TZ environment variable is set to /etc/localhost, and that's a link to
  a zoneinfo file, then tzlocal will now find the timezone name, and not
  just return a localtime TZ object.

4.1 (2021-10-29)
----------------

- No changes from 4.1b1.

4.1b1 (2021-10-28)
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- It turns out a lot of Linux distributions make the links between zoneinfo
  aliases backwards, so instead of linking GB to Europe/London it actually
  links the other way. When /etc/localtime then links to Europe/London, and you
  also have a config file saying Europe/London, the code that checks if
  /etc/localtime is a symlink ends up at GB instead of Europe/London and
  we get an error, as it thinks GB and Europe/London are different zones.

  So now we check the symlink of all timezones in the uniqueness test. We still
  return the name in the config file, though, so you would only get GB or Zulu
  returned as the time zone instead of Europe/London or UTC if your only
  configuration is the /etc/localtime symlink, as that's checked last, and
  tzlocal will return the first configuration found.

- The above change also means that GMT and UTC are no longer seen as synonyms,
  as zoneinfo does not see them as synonyms. This might be controversial,
  but you just have to live with it. Pick one and stay with it. ;-)

4.0.2 (2021-10-26)
------------------

- Improved the error message when you had a conflict including a
  /etc/localtime symlink.

4.0.1 (2021-10-19)
------------------

- A long time bug in Ubuntu docker images seem to not get fixed,
  so I added a workaround.

4.0.1b1 (2021-10-18)
--------------------

- Handle UCT and Zulu as synonyms for UTC, while treating GMT and
  UTC as different.

4.0 (2021-10-18)
----------------

- No changes.

4.0b5 (2021-10-18)
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- Fixed a bug in the Windows DST support.

4.0b4 (2021-10-18)
------------------

- Added support for turning off DST in Windows. That only works in
  whole hour timezones, and honestly, if you need to turn off DST,
  you should just use UTC as a timezone.

4.0b3 (2021-10-08)
------------------

- Returning pytz_deprecation_shim zones to lower the surprise for pytz users.

- The Windows OS environment variable 'TZ' will allow an override for
  setting the timezone. The override timezone will be asserted for
  timezone validity bit not compared against the systems timezone offset.
  This allows for overriding the timezone when running tests.

- Dropped support for Windows 2000, XP and Vista, supports Windows 7, 8 and 10.

4.0b2 (2021-09-26)
------------------

- Big refactor; Implemented get_localzone_name() functions.

- Adding a Windows OS environment variable 'TZ' will allow an override for
  setting the timezone (also see 4.0b3).

4.0b1 (2021-08-21)
------------------

- Now finds and compares all the configs (under Unix-like systems) and
  tells you what files it found and how they conflict. This should make
  it a lot easier to figure out what goes wrong.

3.0 (2021-08-13)
----------------

- Modernized the packaging, moving to setup.cfg etc.

- Handles if the text config files incorrectly is a TZ file. (revanSZ)

3.0b1 (2020-09-21)
------------------

- Dropped Python 2 support
- Switched timezone provider from pytz to zoneinfo (PEP 615)