Make dill requirements for flexible to work with Apache Beam reqs (#155)

Author: EntilZha

functional/__init__.py

@@ -5,9 +5,9 @@
 from functional.streams import seq, pseq
 
 __author__ = "Pedro Rodriguez"
-__copyright__ = "Copyright 2020, Pedro Rodriguez"
+__copyright__ = "Copyright 2021, Pedro Rodriguez"
 __license__ = "MIT"
-__version__ = "1.4.2"
+__version__ = "1.4.3"
 __maintainer__ = "Pedro Rodriguez"
 __email__ = "me@pedro.ai"
 __status__ = "Production"