Enable avoiding using podman

[davidfestal]

Summary

Allow using the CreateKindClusters.sh script without podman, even though podman is installed on the system (for example on linux boxes where you have both docker and podman)

[sttts]

don't care much about this little chance. Overall, IMO this does not really belong into the repository.

[sttts]

/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

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[openshift-ci]

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

Test name	Commit	Details	Required	Rerun command
ci/prow/e2e-multiple-runs	0cbcc1a	link	unknown	/test e2e-multiple-runs

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[sttts]

/retest