[2.21]Clear http scheme on containerd insecure-registry tls config (#10084)

[KubeKyrie]

What type of PR is this?
/kind bug

What this PR does / why we need it:
This is a cherry-pick of #10084
Which issue(s) this PR fixes:

Fixes #

Special notes for your reviewer:

Does this PR introduce a user-facing change?:

Clear http scheme on containerd insecure-registry tls config for compatibility with 1.21

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[k8s-ci-robot]

Hi @KubeKyrie. Thanks for your PR.

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[cyclinder]

/ok-to-test

[yankay]

Thanks @KubeKyrie
/approve
/ok-to-test

[k8s-ci-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: KubeKyrie, yankay

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[ErikJiang]

thanks @KubeKyrie
/lgtm