devel/py-tzlocal: Update to 5.4.4

This update was required to unbreak the port, as versions
5.4.1 and 5.4.2 were yanked by upstream due to not
containing any files.

See also: https://github.com/regebro/tzlocal/issues/179

PR: 296621, 296625
Reported by: Multiple users
Approved by: blanket (runtime fix)