For moby/moby PR 45025 (Docker v24, API v1.43). `docker run --annotation foo=bar` is similar to `podman run --annotation foo=bar`, however, unlike Podman, Docker implementation also accepts an annotation with an empty value. (`docker run --annotation foo`) Signed-off-by: Akihiro Suda <akihiro.suda.cz@hco.ntt.co.jp>