Summary:
This upgrades storybook and relevant addons to v6.
This fixes the security issues from storybook's deps.

Also fixes the DataTable component for storybook by removing the
`react-docgen-typescript-webpack-plugin` which was creating invalid js.

TODO: v6 also seems to break the story source. We should figure out how to fix this.

NOTE: v6 breaks addons-notes but our notes weren't really useful.

Test Plan: `yarn storybook`

Reviewers: zasgar, michelle, nick, #engineering

Reviewed By: zasgar, #engineering

Differential Revision: https://phab.corp.pixielabs.ai/D6699

GitOrigin-RevId: 3c9de82729f2798bb4b32253a56c57d4530fef11