chore: set UpCloud Oy as copyright holder (#167)

Author: scop

LICENSE.txt

@@ -1,6 +1,6 @@
 The MIT License (MIT)
 
-Copyright (c) 2015 UpCloud
+Copyright (c) 2015 UpCloud Oy
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal

upcloud_api/__init__.py

@@ -8,7 +8,7 @@
 __maintainer__ = 'UpCloud'
 __maintainer_email__ = 'hello@upcloud.com'
 __license__ = 'MIT'
-__copyright__ = 'Copyright (c) 2015- UpCloud'
+__copyright__ = 'Copyright (c) 2015 UpCloud Oy'
 
 from upcloud_api.cloud_manager import CloudManager
 from upcloud_api.errors import UpCloudAPIError, UpCloudClientError