Partially revert https://github.com/agronholm/apscheduler/commit/b773c79ac505
until devel/py-tzlocal is updated to 2.1

--- setup.py.orig	2021-01-19 14:34:44 UTC
+++ setup.py
@@ -41,7 +41,7 @@ setup(
         'setuptools >= 0.7',
         'six >= 1.4.0',
         'pytz',
-        'tzlocal ~= 2.0',
+        'tzlocal >= 1.2, < 3.0',
     ],
     extras_require={
         ':python_version == "2.7"': ['futures'],