Update Konflux references to 8ed7846

[red-hat-konflux]

This PR contains the following updates:

Package	Change
quay.io/konflux-ci/tekton-catalog/task-buildah-remote-oci-ta	7e39d1e -> 8ed7846

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[openshift-ci]

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[openshift-ci]

Hi @red-hat-konflux[bot]. Thanks for your PR.

I'm waiting for a openshift-knative 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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