Update OWNERS file

[samuelvl]

Update OWNERS file to match the current working members

[openshift-ci]

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[openshift-ci]

@samuelvl: The following test 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/prow/odh-manifests-e2e	63e135f	link	true	/test odh-manifests-e2e

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