add -tests=false for staticcheck to exclude test

[pacoxu]

/kind failing-test
Test why staticcheck failed

NONE

[k8s-ci-robot]

Skipping CI for Draft Pull Request.
If you want CI signal for your change, please convert it to an actual PR.
You can still manually trigger a test run with /test all

[pacoxu]

/test pull-kubernetes-verify

[pacoxu]

/test pull-kubernetes-verify

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: pacoxu
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[pacoxu]

test with -tests=false

Test name	Commit	Details	Rerun command
pull-kubernetes-verify	408dcc1	link	/test pull-kubernetes-verify

Not valid:

cluster/images/conformance/go-runner/env.go:38:6: type explicitEnv is unused (U1000)
cluster/images/conformance/go-runner/env.go:44:23: func (*explicitEnv).Getenv is unused (U1000)
cmd/kubeadm/app/phases/upgrade/postupgrade.go:184:6: func moveFiles is unused (U1000)
cmd/kubeadm/app/phases/upgrade/postupgrade.go:196:6: func rollbackFiles is unused (U1000)
cmd/kubeadm/test/cmd/util.go:75:6: func getKubeadmPath is unused (U1000)
...

[pacoxu]

/test pull-kubernetes-verify

[k8s-ci-robot]

@pacoxu: The following test failed, say /retest to rerun all failed tests:

Test name	Commit	Details	Rerun command
pull-kubernetes-verify	4024aca	link	/test pull-kubernetes-verify

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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[caesarxuchao]

/triage accepted