bug(tz): pytz must be updated to avoid mismatches from timezonefinder

[badgersec]

Incompatability between the tz set provided by pytz and timezonefinder. Updating pytz to include a newer set of tzs resolved the following error.

Error:

Traceback (most recent call last):
  File ".../bellingcat/ShadowFinder/testfile.py", line 26, in <module>
    finder.find_shadows()
  File ".../bellingcat/ShadowFinder/src/shadowfinder/shadowfinder.py", line 184, in find_shadows
    else timezone(tz)
         ^^^^^^^^^^^^
  File ".../bellingcat/ShadowFinder/.venv/lib/python3.12/site-packages/pytz/__init__.py", line 188, in timezone
    raise UnknownTimeZoneError(zone)
pytz.exceptions.UnknownTimeZoneError: 'America/Coyhaique'