This adds target components on check_readme_versions.sh after
merging https://github.com/kubernetes-sigs/kubespray/pull/9044
In addition, this fixes typo on check_readme_versions.sh
This adds `foo_version` variables for some components because
check_readme_versions.sh verifies the corresponding version for
`<component name>_version` from main.yml. This change also makes
consistency in the main.yml. In long-term, we will be able to
remove the existing `foo_image_tag` variables, but that is not now
for backwards compatibility for users.
During code-review, reviwers needed to take care of README.md also
should be updated when the pull request updated component versions.
This adds the corresponding check to reduce reviwer's burden.
Victor Morales
Kenichi Omichi