Update python sdk

[nicholaszn]

We have an app created with splunk add-on builder.
We got an alert about the new python SDK..

1. check_python_sdk_version
• If your app relies on the Splunk SDK for Python, we require you to use an acceptably-recent version in order to avoid compatibility issues between your app and the Splunk Platform or the Python language runtime used to execute your app’s code. Please update your Splunk SDK for Python version to the least 2.0.2. More information is available on this project’s GitHub page: https://github.com/splunk/splunk-sdk-python
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How do we upgrade the SDK in the add-on builder to use the latest?

[VatsalJagani]

@nicholaszn- Easiest thing to do is load your existing Add-on on to Add-on Builder and re-build the Add-on with new version, will automatically upgrade all the libraries.

I hope this helps!!!