* bump reva to latest edge
To get https://github.com/cs3org/reva/pull/4336
* graph: Import unified role related code from reva
The UnifiedRole related types are pretty specific to the graph service.
Maintaining them as part of reva makes things more complex that required.
* chore: add failing cases to the expected failures
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Co-authored-by: Florian Schade <f.schade@icloud.com>
