Remove misleading error from CronJob controller when it can't find pa…

[redbaron]

Backporting #44962 to release-1.6 branch

/cc @soltysh

CronJob controller lists all Jobs and then tries to match then against CronJobs using parent UID. It reports error if parent UID can't be found which means it reports error on every job which is not part of CronJob

NONE

[k8s-ci-robot]

Hi @redbaron. Thanks for your PR.

I'm waiting for a kubernetes member to verify that this patch is reasonable to test. If it is, they should reply with @k8s-bot 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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[resouer]

@k8s-bot ok to test

[soltysh]

/lgtm
/approve
@ethernetdan for the cherry-pick approval

[k8s-github-robot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: redbaron, soltysh

Needs approval from an approver in each of these OWNERS Files:

• pkg/controller/cronjob/OWNERS [soltysh]

You can indicate your approval by writing /approve in a comment
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[soltysh]

@k8s-bot verify test this

[k8s-github-robot]

Automatic merge from submit-queue

[k8s-cherrypick-bot]

Commit found in the "release-1.6" branch appears to be this PR. Removing the "cherrypick-candidate" label. If this is an error find help to get your PR picked.