feat(registry): change the default registry from dockerhub to quay.io

[brokenpip3]

Changes

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Reviewer Notes

Let's change the registry to avoid pull limitations and make the images name more near to the project name.
In the future we can improve the github ci to let it become less makefile dependent.
As soon a operator image will be pushed in quay.io I will create another PR to fix the doc with that reference.

Release Notes

Changed the default registry from docker-hub to quay.io

[prryb]

Hey, I've added those secrets before and forgot to let you know, figured out it's easier to just rename them here, rather than regenerate/add new.

[brokenpip3]

thanks @prryb :)