Use newer base and HTML linting images
What does this MR do and why?
Use recently rebuilt images:
- https://gitlab.com/gitlab-org/gitlab-docs/-/jobs/3220433198
- https://gitlab.com/gitlab-org/gitlab-docs/-/jobs/3220433196
Also add https://github.com/DavidAnson/markdownlint-cli2 to markdown linting image
Merge request acceptance checklist
This checklist encourages us to confirm any changes have been analyzed to reduce risks in quality, performance, reliability, security, and maintainability.
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I have evaluated the MR acceptance checklist for this merge request.