upgrade python generator version (#541)

Co-authored-by: jsklan <jsklan.development@gmail.com>

Author: fern-support

fern/apis/api/generators.yml

@@ -11,7 +11,7 @@ groups:
   python-sdk:
     generators:
       - name: fernapi/fern-python-sdk
-        version: 4.21.4
+        version: 4.23.2
         api:
           settings:
             unions: v1