feat: add HF token and allow gpu workflow to run from pull request

[jaiakash]

What this PR does / why we need it:

• Use HF_TOKEN from upstream repo.
• We want the action to run on incoming PRs when maintainers add the ok-to-test-gpu-runner label. Since in feat: support for managing gpu enabled self runner infra #2762 we cant have that.

Which issue(s) this PR fixes :
Fixes #2814

Checklist:

• Docs included if any changes are user facing

[coveralls]

Pull Request Test Coverage Report for Build 17474656673

Details

• 0 of 0 changed or added relevant lines in 0 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage remained the same at 52.136%

---

Totals
Change from base Build 17469034215:	0.0%
Covered Lines:	1025
Relevant Lines:	1966

---

💛 - Coveralls

[andreyvelich]

As we discussed, we also need to update the checkout action to ensure that it takes the latest changes from the PR:

- uses: actions/checkout@v4
  with:
    ref: ${{ github.event.pull_request.head.sha }}

[jaiakash]

Yeah, Updated it.

[google-oss-prow]

[APPROVALNOTIFIER] This PR is NOT APPROVED

This pull-request has been approved by:
Once this PR has been reviewed and has the lgtm label, please assign gaocegege for approval. For more information see the Kubernetes Code Review Process.

The full list of commands accepted by this bot can be found here.

Details

Needs approval from an approver in each of these files:

• OWNERS

Approvers can indicate their approval by writing /approve in a comment
Approvers can cancel approval by writing /approve cancel in a comment

[jaiakash]

Closed this, Please check #2818