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### _Why are the changes needed?_
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change the k8s-it serviceaccount to kyuubi instead of default

### _How was this patch tested?_
Pass CI

Closes #890 from ulysses-you/fix-minikube-test.

Closes #890

5844c482 [ulysses-you] kyuubi
16192d6e [ulysses-you] test
Authored-by: ulysses-you <ulyssesyou18@gmail.com>
Signed-off-by: ulysses-you <ulyssesyou18@gmail.com>