Add 5.5.4 tag to point to the same commit as 5.5.5
With: https://github.com/docker-library/official-images/pull/16181/files we accidentally marked the docker image as `5.5.5`, instead of `5.5.4`. As a workaround we skip `5.5.5` CrateDB release and if a hotfix release is needed for `5.5` will release a `5.5.6` version in the future.
Marios Trivyzas