Add script & instructions for in-place upgrade test. #1304
Merged
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Is this a bug fix or adding new feature?
Adds script + instructions for an in-place upgrade test.
What is this PR about? / Why do we need it?
Makes it easier to test upgrades of the CSI Driver to detect breaking changes.
What testing is done?
Followed steps added in readme (ex: ran upgrade script, ran e2e tests, etc.)