auth: Add tests for resource protections
auth: Add tests for resource protections

Try to mess up system_auth tables and verify that Scylla rejects that.

Signed-off-by: Dejan Mircevski <1e9694aae17a51d4875d9bf4a0d0e20ef37c1b85@scylladb.com>

scylladb/scylla,scylladb/scylla,scylladb/scylla,scylladb/scylla