[DNM] Fix function tests with new build-root image

[creydr]

Testing built-dockerfile without chmod

[openshift-ci-robot]

[REHEARSALNOTIFIER]
@creydr: the pj-rehearse plugin accommodates running rehearsal tests for the changes in this PR. Expand 'Interacting with pj-rehearse' for usage details. The following rehearsable tests have been affected by this change:

Test name	Repo	Type	Reason
pull-ci-openshift-knative-kn-plugin-func-release-next-e2e-oncluster-test	openshift-knative/kn-plugin-func	presubmit	Ci-operator config changed
pull-ci-openshift-knative-kn-plugin-func-release-next-unit	openshift-knative/kn-plugin-func	presubmit	Ci-operator config changed

Prior to this PR being merged, you will need to either run and acknowledge or opt to skip these rehearsals.

Interacting with pj-rehearse

Comment: /pj-rehearse to run up to 5 rehearsals
Comment: /pj-rehearse skip to opt-out of rehearsals
Comment: /pj-rehearse {test-name}, with each test separated by a space, to run one or more specific rehearsals
Comment: /pj-rehearse more to run up to 10 rehearsals
Comment: /pj-rehearse max to run up to 25 rehearsals
Comment: /pj-rehearse auto-ack to run up to 5 rehearsals, and add the rehearsals-ack label on success
Comment: /pj-rehearse abort to abort all active rehearsals

Once you are satisfied with the results of the rehearsals, comment: /pj-rehearse ack to unblock merge. When the rehearsals-ack label is present on your PR, merge will no longer be blocked by rehearsals.
If you would like the rehearsals-ack label removed, comment: /pj-rehearse reject to re-block merging.

[creydr]

/pj-rehearse

[openshift-ci-robot]

@creydr: now processing your pj-rehearse request. Please allow up to 10 minutes for jobs to trigger or cancel.

[openshift-ci]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by: creydr
Once this PR has been reviewed and has the lgtm label, please assign matejvasek for approval. For more information see the Kubernetes Code Review Process.

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• ci-operator/config/openshift-knative/kn-plugin-func/OWNERS

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[creydr]

Reverted changes in release-next (openshift-knative/kn-plugin-func#883). Will rerun...

/pj-rehearse pull-ci-openshift-knative-kn-plugin-func-release-next-unit

[openshift-ci-robot]

@creydr: now processing your pj-rehearse request. Please allow up to 10 minutes for jobs to trigger or cancel.

[openshift-ci]

@creydr: 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/rehearse/openshift-knative/kn-plugin-func/release-next/e2e-oncluster-test	299d421	link	unknown	/pj-rehearse pull-ci-openshift-knative-kn-plugin-func-release-next-e2e-oncluster-test
ci/rehearse/openshift-knative/kn-plugin-func/release-next/unit	299d421	link	unknown	/pj-rehearse pull-ci-openshift-knative-kn-plugin-func-release-next-unit

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