updated deprecated field in docs

[freefood89]

Changes

Updating documentation for sorting query results. Documentation was still referring to deprecated field names created_at and updated_at.

/kind documentation

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Release Notes

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[tekton-robot]

Hi @freefood89. 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.

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[khrm]

/lgtm

[tekton-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: avinal

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