feat(tikv-pd): use prow style job in 6.1

[purelind]

use prow style job in 6.1

[ti-chi-bot[bot]]

I have already done a preliminary review for you, and I hope to help you do a better job.

Based on the pull request title and description, it seems that the changes aim to update the job style in the 6.1 release of the tikv-pd project to use the Prow style job.

The changes include:

• Removing the disabled flag in the pd_ghpr_build job.
• Updating the tikv/pd/release-6.1-presubmits.yaml file to include the new Prow style job.

The changes seem straightforward and do not appear to introduce any potential problems. However, there are a few suggestions that could be considered for improvement:

• The context field in the tikv/pd/release-6.1-presubmits.yaml file could be more descriptive to better reflect the purpose of the job.
• It would be helpful to add more details to the pull request description to explain the reason for the changes, such as any benefits or performance improvements that the new job style provides.

Overall, the changes seem reasonable and can be merged.

[ti-chi-bot[bot]]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: wuhuizuo

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Needs approval from an approver in each of these files: - ~~[jenkins/OWNERS](https://github.com/PingCAP-QE/ci/blob/main/jenkins/OWNERS)~~ [wuhuizuo] - ~~[prow-jobs/OWNERS](https://github.com/PingCAP-QE/ci/blob/main/prow-jobs/OWNERS)~~ [wuhuizuo] Approvers can indicate their approval by writing `/approve` in a comment Approvers can cancel approval by writing `/approve cancel` in a comment

[ti-chi-bot[bot]]

[LGTM Timeline notifier]

Timeline:

• 2024-06-11 03:31:17.144661887 +0000 UTC m=+435431.197973812: :ballot_box_with_check: agreed by wuhuizuo.