chore: bump 0.1.0-alpha.2

Author: kiwiyou

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "portone-server-sdk"
-version = "0.1.0a1"
+version = "0.1.0a2"
 description = "PortOne Python SDK for server-side usage"
 authors = [
     { name = "portone", email = "[email protected]" },