Update image references from sidecar example

[Victoremepunto]

Fixes the image references from the sidecar example to latest on Quay.io

closes #273

[openshift-ci]

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[openshift-ci]

Hi @Victoremepunto. Thanks for your PR.

I'm waiting for a openshift 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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[openshift-bot]

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/lifecycle stale

[Victoremepunto]

/remove-lifecycle stale