test: fix sanity test failure

[andyzhangx]

What type of PR is this?
/kind test

What this PR does / why we need it:
test: fix sanity test failure

Which issue(s) this PR fixes:

Fixes #

Requirements:

• uses conventional commit messages
• includes documentation
• adds unit tests
• tested upgrade from previous version

Special notes for your reviewer:

Release note:

none

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: andyzhangx

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• OWNERS [andyzhangx]

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[k8s-ci-robot]

@andyzhangx: The following tests failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
pull-blob-csi-driver-external-e2e-nfs	7008dbb	link	true	/test pull-blob-csi-driver-external-e2e-nfs
pull-blob-csi-driver-e2e	7008dbb	link	true	/test pull-blob-csi-driver-e2e

Full PR test history. Your PR dashboard. Please help us cut down on flakes by linking to an open issue when you hit one in your PR.

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[andyzhangx]

/cherrypick release-1.22

[k8s-infra-cherrypick-robot]

@andyzhangx: #1234 failed to apply on top of branch "release-1.22":

Applying: test: fix sanity test failure
Using index info to reconstruct a base tree...
M	test/sanity/run-test.sh
Falling back to patching base and 3-way merge...
Auto-merging test/sanity/run-test.sh
CONFLICT (content): Merge conflict in test/sanity/run-test.sh
error: Failed to merge in the changes.
hint: Use 'git am --show-current-patch=diff' to see the failed patch
Patch failed at 0001 test: fix sanity test failure
When you have resolved this problem, run "git am --continue".
If you prefer to skip this patch, run "git am --skip" instead.
To restore the original branch and stop patching, run "git am --abort".

In response to this:

/cherrypick release-1.22

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the kubernetes/test-infra repository.