Recreate SSL key if it does not match the config

What does this MR do?

Recreate the SSL key if it does not match the config.

This MR was recreated in this project, as it was discussed that the underlying issue is not a critical security problem.

Differences from original MR.

• changelogs/unreleased/kc-ssl-recreate.yml has been removed, as it's no longer required.
• Updated Git trailer message from Changelog: security to Changelog: fixed

Related issues

Closes https://gitlab.com/gitlab-org/omnibus-gitlab/-/issues/6028

Checklist

See Definition of done.

For anything in this list which will not be completed, please provide a reason in the MR discussion

Required

• Merge Request Title, and Description are up to date, accurate, and descriptive
• MR targeting the appropriate branch
• MR has a green pipeline on GitLab.com
• Pipeline is green on dev.gitlab.org if the change is touching anything besides documentation or internal cookbooks
• trigger-package has a green pipeline running against latest commit

Expected (please provide an explanation if not completing)

• Test plan indicating conditions for success has been posted and passes
• Documentation created/updated
• Tests added
• Integration tests added to GitLab QA
• Equivalent MR/issue for the GitLab Chart opened