change unsupported to unmaintained

[christinaausley]

Description

Closes #7708.

When should this change go live?

• This is a bug fix, security concern, or something that needs urgent release support. (add bug or support label)
• This is already available but undocumented and should be released within a week. (add available & undocumented label)
• This is on a specific schedule and the assignee will coordinate a release with the Documentation team. (create draft PR and/or add hold label)
• This is part of a scheduled alpha or minor. (add alpha or minor label)
• There is no urgency with this change (add low prio label)

PR Checklist

• The commit history of this PR is cleaned up, using {type}(scope): {description} commit message(s)

• My changes are for an upcoming minor release and are in the /docs directory (version 8.9).
• My changes are for an already released minor and are in a /versioned_docs directory.

• I added a DRI, team, or delegate as a reviewer for technical accuracy and grammar/style:
  • Engineering team review
  • Technical writer review via @camunda/tech-writers unless working with an embedded writer.

[christinaausley]

I may need some engineering assistance with this based on to what degree we want to rename here -- i.e., do we want to change the web URL for unmaintained versions as well?

[mesellings]

I may need some engineering assistance with this based on to what degree we want to rename here -- i.e., do we want to change the web URL for unmaintained versions as well?

That is an excellent point!

[christinaausley]

As a sidenote, the build is failing due to the link checker flagging Docusaurus-hashed image assets as broken links. This is a false positive since the images build correctly? I'll add an exclusion pattern to skip validation of these hashed image files for now but should be revisited before merge.

[github-actions]

The preview environment relating to the commit e8af0c9 has successfully been deployed. You can access it at https://preview.docs.camunda.cloud/pr-7751/