[Bug] Fix the authz module's Ranger Test case doAs Bug

[davidyuan1223]

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Describe the bug

In the authz module, some test case about ranger use doAs(user, userSql) to test, but we need doAs(user, spark.sql(userSql)), this will make the test case success, so that we can not know the test is success?
Just like the comment1, which is about execute the right test case will throw exception so that we can fix the reason cause.
But if we use doAs(user,userSql) to execute the test case, it will give us a wrong test result, you can get more info in this pr

Affects Version(s)

master

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Are you willing to submit PR?

• Yes. I would be willing to submit a PR with guidance from the Kyuubi community to fix.
• No. I cannot submit a PR at this time.