message: Use latest npm version of for --v3 --python config
diff: -# Default Configuration - Pythong
  +# Default Configuration - Python
  The V2 version of the Python Generator.
  +``` yaml $(python) && $(v3)
  +version: ~3.0.6298
  +use-extension:
  + "@autorest/python": "latest"
  +try-require: ./readme.python.md
  +```
  ``` yaml $(python) && $(preview) && !isRequested('@autorest/python')
  # default the v2 generator to using the last stable @microsoft.azure/autorest-core
  