[release-1.21] [release-1.23] server: Canonize selinux label for comparison with filesystem label

[openshift-cherrypick-robot]

This is an automated cherry-pick of #5829

/assign haircommander

Fixed `io.kubernetes.cri-o.TrySkipVolumeSELinuxLabel` annotation usage with the OpenShift MCS.

[codecov]

Codecov Report

Merging #5873 (6cb6bf7) into release-1.21 (8faeccb) will decrease coverage by 0.01%.
The diff coverage is 0.00%.

@@               Coverage Diff                @@
##           release-1.21    #5873      +/-   ##
================================================
- Coverage         45.01%   45.00%   -0.02%     
================================================
  Files               109      109              
  Lines             11053    11057       +4     
================================================
  Hits               4976     4976              
- Misses             5598     5602       +4     
  Partials            479      479              

[haircommander]

/retest
/lgtm
/approve

[openshift-ci]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: haircommander, openshift-cherrypick-robot

The full list of commands accepted by this bot can be found here.

The pull request process is described here

Needs approval from an approver in each of these files:

• OWNERS [haircommander]

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[openshift-ci]

@openshift-cherrypick-robot: 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
ci/openshift-jenkins/e2e_crun_cgroupv2	6cb6bf7	link	false	/test e2e_cgroupv2
ci/openshift-jenkins/integration_crun_cgroupv2	6cb6bf7	link	false	/test integration_cgroupv2

Full PR test history. Your PR dashboard.

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. I understand the commands that are listed here.

[openshift-bot]

/retest-required

Please review the full test history for this PR and help us cut down flakes.