[props-table] update react-docgen dependency

Feature Request

Description

Update terra-props-table to use the current version of react-docgen. The current version pulls in babel-runtime which relies on babel v6

[bjankord]

Let’s hold of on doing this work for now. It looks like react-docgen v5 is in beta, I’d like to wait until that comes up.

We talked in scrum that when we want to look at move from using react-docgen at run-time to using it at build time to cut down on the webpack bundle.

We also talked about with doing this, we’ll likely not add any more enhancements / dependencies updates to terra-props-table and plan to deprecate it once we add the ability to use react-docgen at build time.

[stale[bot]]

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