fix: get tektonconfig version from label

[l-qing]

When the managedFields field is present in the TektonConfig CR, the kubectl get tektonconfig config -o yaml command returns multiple operator.tekton.dev/release-version labels. This causes the tektonconfig_version_from_label function to return an incorrect version. This commit fixes the issue by adding a head -n 1 command to the grep command in the tektonconfig_version_from_label function.

Changes

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[tekton-robot]

Hi @l-qing. Thanks for your PR.

I'm waiting for a tektoncd member to verify that this patch is reasonable to test. If it is, they should reply with /ok-to-test on its own line. Until that is done, I will not automatically test new commits in this PR, but the usual testing commands by org members will still work. Regular contributors should join the org to skip this step.

Once the patch is verified, the new status will be reflected by the ok-to-test label.

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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.

[pratap0007]

/ok-to-test

[jkhelil]

/lgtm

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: vdemeester

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