Add host ID to host fingerprint attributes

[hashi-divyansh]

Description

• Adding host ID to generic host fingerprint attributes.

Testing & Reproduction steps

Links

https://hashicorp.atlassian.net/browse/NMD-1667

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.
• LLM Usage If an LLM was used to generate any code, please ensure and confirm you have read
  and followed the AI usage guide.

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
  history should be preserved.
• Enterprise PRs If this is an enterprise only PR, please add any required changelog entry
  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.

[tgross]

Let's add a changelog entry for this so users know they can pick it up in their own jobspecs if they want. I dunno how you want to describe this to users because it varies depending on the host OS (and even host OS setup). Maybe just describe it as a "unique host ID"?

[tgross]

We're not super consistent about it but most of the built-in fingerprints use snake_case instead of camelCase

[hashi-divyansh]

Using term When available becz gopsutil lib does its best to find out the uniq_id depending on the platform (linux, window etc) but in case if it can't find one, It will return an empty string.

[tgross]

This is in the PR checklist, but heads up that in core you add changelog entries but running make cl, which generates a little .changelog/<PR ID>.txt file that gets assembled during the release process. That makes it feasible to land lots of changes for a big project concurrently without constantly hitting merge conflicts.

Suggested change

	* client: Added the `unique.host_id` node attribute to the host fingerprint. When available, It can be used in job constraints and other node attribute-based workflows.
	* client: Added the `unique.host_id` node attribute to the host fingerprint, when available

[tgross]

This is in the PR checklist, but heads up that in core you add changelog entries but running make cl, which generates a little .changelog/<PR ID>.txt file that gets assembled during the release process. That makes it feasible to land lots of changes for a big project concurrently without constantly hitting merge conflicts.

Suggested change

	* client: Added the `unique.host_id` node attribute to the host fingerprint. When available, It can be used in job constraints and other node attribute-based workflows.
	* client: Added the `unique.host_id` node attribute to the host fingerprint, when available

[tgross]

LGTM

[tgross]

Added a Jira link there for you. Looks like the backport cherry-pick failed, but I'll take care of that for you because it's almost certainly a flake in the tooling