Support containers with name:tag@digest

Issue

• s2i builds referring to containers by both tags and SGA256 digest fail. For example:

  STEP 1: FROM nginx: alpine @ sha256: 111111111111111111111111111111111111111111111111111111111111111111111111111
  error: build error: error creating build container: The following failures happened while trying to pull image specified by "nginx: alpine @ sha256: 111111111111111111111111111111111111111111111111111111111111111111111111111" based on search registries in /etc/containers/:
  "Localhost / nginx: Alpine @ sha256: 111111111111111111111111111111111111111111111111111111111111111111111111111": error parsing attempted imageName "docker: // localhost / nginx: Alpine @ sha256: 111111111111111111111111111111111111111111111111111111111111111111111111111" Docker references with Both a tag and digest are currently not supported
  "Docker.io/library/nginx:alpine@sha256:111111111111111111111111111111111111111111111111111111111111111111111111111": error parsing attempted imageName "docker: //docker.io/library/nginx: Alpine @ sha256: 111111111111111111111111111111111111111111111111111111111111111111111111111" Docker references with Both a tag and digest are currently not supported
  

• RHOCP 4.7 says it uses CRI-O 1.20 which should have https://github.com/cri-o/cri-o/pull/3060 merged back in 1.17.

• What's the current status of support for this feature or is there any plan to implement it?
• It was possible in Docker, apparently users used this feature and expect compatibility in migration from Docker to current container engine.
• This incompatibility prevents enterprise users migrating from EOL approaching RHOCP 3.11 to RHOCP 4.x