Description

Fixes #25627 by adding an extra alloc_advertise_ipv6 option similar to the AdvertiseIPv6Addr with the docker driver config. Seems the simplest way to fix this?

I'll finish the contributor checklist if I get a green light about this PR.

Links

See #25627

Contributor Checklist

• Changelog Entry If this PR changes user-facing behavior, please generate and add a
  changelog entry using the make cl command.
• Testing Please add tests to cover any new functionality or to demonstrate bug fixes and
  ensure regressions will be caught.
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  and job configuration, please update the Nomad website documentation to reflect this. Refer to
  the website README for docs guidelines. Please also consider whether the
  change requires notes within the upgrade guide.

Reviewer Checklist

• Backport Labels Please add the correct backport labels as described by the internal
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  in the majority of situations. The main exceptions are long-lived feature branches or merges where
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