chore(deps): update operator-1-21-bundle to e8ee421

[red-hat-konflux-kflux-prd-rh02]

Image created from 'https://github.com/openshift-pipelines/operator.git?rev=00c97adefb2b9959da27bc79b0c217f6d5e96d69'

This PR contains the following updates:

Package	Update	Change
quay.io/redhat-user-workloads/tekton-ecosystem-tenant/pipelines-operator-bundle	digest	663c937 -> e8ee421

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New changes are detected. LGTM label has been removed.

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PR needs rebase.

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