SNOW-880185: 3.1.0a2 release preparation (#1673)

Author: sfc-gh-aling

DESCRIPTION.md

@@ -9,6 +9,9 @@ Source code is also available at: https://github.com/snowflakedb/snowflake-conne
 # Release Notes
 
 
+- v3.1.0a2(Aug 1, 2023)
+  - Version 3.1.0a2 is built on top of 3.1.0a1, including all the latest changes in the released GA version 3.1.0.
+
 - v3.1.0(July 31, 2023)
 
   - Added a feature that lets you add connection definitions to the `connections.toml` configuration file. A connection definition refers to a collection of connection parameters, for example, if you wanted to define a connection named `prod``:

src/snowflake/connector/version.py

@@ -1,3 +1,3 @@
 # Update this for the versions
 # Don't change the forth version number from None
-VERSION = (3, 1, "0a1", None)
+VERSION = (3, 1, "0a2", None)