Update version to v5.0.0

Author: vividvilla

kiteconnect/__version__.py

@@ -2,7 +2,7 @@
 __description__ = "The official Python client for the Kite Connect trading API"
 __url__ = "https://kite.trade"
 __download_url__ = "https://github.com/zerodhatech/pykiteconnect"
-__version__ = "5.0.0-beta"
+__version__ = "5.0.0"
 __author__ = "Zerodha Technology Pvt. Ltd. (India)"
 __author_email__ = "talk@zerodha.tech"
 __license__ = "MIT"