Add a Patch() method to the databroker gRPC service. Update the storage.Backend interface to include the Patch() method now that all the storage.Backend implementations include it. Add a test to exercise the patch method under concurrent usage.
* databroker: add list types method * fix test * Update pkg/storage/redis/redis.go Co-authored-by: Denis Mishin <dmishin@pomerium.com> --------- Co-authored-by: Denis Mishin <dmishin@pomerium.com>
* databroker: implement leases * return error * handle gRPC errors
