Hadolint: support both Containerfile and Dockerfile

[sanmai-NL]

Fixes #

Proposed Changes

A vendor-neutral name for Dockerfile is Containerfile.

Readiness Checklist

Author/Contributor

• Add entry to the CHANGELOG listing the change and linking to the corresponding issue (if appropriate)
• If documentation is needed for this change, has that been included in this pull request

Reviewing Maintainer

• Label as breaking if this is a large fundamental change
• Label as either automation, bug, documentation, enhancement, infrastructure, or performance

[nvuillam]

@sanmai-NL thanks for the PR :)

Just add "Containerfile" in .cspell.json and it will pass :)

[sanmai-NL]

@nvuillam Done. Can you finish the rest?

[nvuillam]

@sanmai-NL i think once the CI passes we are all good, just remove the "draft" status of the PR if you consider it ready for merge :)

[sanmai-NL]

@nvuillam Done.

[echoix]

Thanks! The failure is unrelated and I don't understand the cause yet, but your job is done :)