Description

Revisit logic added by #25533 and make sure that it does not break Windows compatibility.

Without this volume creation targeting to Windows node failed to error:

Error creating volume: Unexpected response code:
 500 (rpc error: rpc error: HostVolume.Create error:
 error changing owner/group:
 chown c:\opt\nomad\data\host_volumes\688372d2-c709-de26-5718-effd054bb95a: not supported by windows)

Testing & Reproduction steps

name = "example"
node_id  = "<node id>"
type = "host"
plugin_id = "mkdir"
capability {
  access_mode  = "single-node-single-writer"
  attachment_mode = "file-system"
}

nomad volume create volume.hcl

Links

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.
• Documentation If the change impacts user-facing functionality such as the CLI, API, UI,
  and job configuration, please update the Nomad product documentation, which is stored in the
  web-unified-docs repo. Refer to the web-unified-docs contributor guide for docs guidelines.
  Please also consider whether the change requires notes within the upgrade
  guide. If you would like help with the docs, tag the nomad-docs team in this PR.

Reviewer Checklist

• Backport Labels Please add the correct backport labels as described by the internal
  backporting document.
• Commit Type Ensure the correct merge method is selected which should be "squash and merge"
  in the majority of situations. The main exceptions are long-lived feature branches or merges where
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  within the public repository.

• If a change needs to be reverted, we will roll out an update to the code within 7 days.

Changes to Security Controls

Are there any changes to security controls (access controls, encryption, logging) in this pull request? If so, explain.