The release pipeline builds and publishes only the CUDA image
(.buildkite/release/release-pipeline.yml builds docker/Dockerfile.cuda;
publish-release-images.sh targets vllm/vllm-omni). The prebuilt ROCm
image is uploaded out-of-band, and v0.28.0 is the latest tag confirmed
live on Docker Hub (#7405). Revert the two docker run examples to
v0.28.0 and state why the tag lags the 0.30.0 wheels, so users do not
hit a missing-tag pull failure. Source-build examples stay on the
upstream vllm/vllm-openai-rocm:v0.30.0 base, which is published.
Signed-off-by: hsliu_ustc <hsliu_ustc@noreply.gitcode.com>