Updated copyright year

Author: prashanttekriwal

CHANGES.txt

@@ -3,7 +3,7 @@ MySQL Connector/Python 8.0 - Release Notes & Changes
 ====================================================
 
 MySQL Connector/Python
-Copyright (c) 2009, 2019, Oracle and/or its affiliates. All rights reserved.
+Copyright (c) 2009, 2020, Oracle and/or its affiliates. All rights reserved.
 
 Full release notes:
  http://dev.mysql.com/doc/relnotes/connector-python/en/

README.txt

@@ -3,7 +3,7 @@ MySQL Connector/Python 8.0
 ==========================
 
 MySQL Connector/Python
-Copyright (c) 2009, 2019, Oracle and/or its affiliates. All rights reserved.
+Copyright (c) 2009, 2020, Oracle and/or its affiliates. All rights reserved.
 
 License information can be found in the LICENSE.txt file.
 
@@ -29,7 +29,7 @@ They can be found in the examples/ directory.
 License
 =======
 
-Copyright (c) 2011, 2019, Oracle and/or its affiliates. All rights reserved.
+Copyright (c) 2011, 2020, Oracle and/or its affiliates. All rights reserved.
 
 This is a release of MySQL Connector/Python, Oracle's Python driver for MySQL.