test: pr for tars plugin

[wuhuizuo]

Issue Number: ref #30

[ghost]

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[ghost]

@wuhuizuo: You can't add the do-not-merge/needs-triage-completed label, please rerun the check with /run-check-issue-triage-complete.

In response to removing label named do-not-merge/needs-triage-completed. Instructions for interacting with me using PR comments are available [here](https://prow.tidb.net/command-help). If you have questions or suggestions related to my behavior, please file an issue against the [ti-community-infra/tichi](https://github.com/ti-community-infra/tichi/issues/new?title=Prow%20issue:) repository.

[wuhuizuo]

/run-check-issue-triage-complete

[wuhuizuo]

/merge

[ghost]

This pull request has been accepted and is ready to merge.

Commit hash: 092304e749fd261d7ac9f9c969f5925ae6f11fb0