Discontinue use of "latest" tag for operator image as confusing
Background
New builds from master are being tagged as :latest
Concern
Having :latest built off master and not reference latest stable release is a concern to be addressed
Possible solutions
We can either:
- stop using
:latestor equivalents altogether, making sure any workflow will produce proper (and usable) tag - rename
:latestinto:masterand update references appropriately