Release 2.3.0 (#388)

- Add two parameters to PostbackAction (#386)  @nanato12 
- Support : "webhook redelivery" (#385) @nanato12 
- add sender into each sendMessage class (#381)  @rotoyang 
- Drop python 3.6 support, start python 3.10 support. Close #366 (#379) @tokuhirom

Author: louis70109

linebot/__about__.py

@@ -15,7 +15,7 @@
 """Meta data of line-bot-sdk."""
 
 
-__version__ = '2.2.1'
+__version__ = '2.3.0'
 __author__ = 'LINE Corporation'
 __copyright__ = 'Copyright 2016, LINE Corporation'
 __license__ = 'Apache 2.0'