chore: migrate to new prow reviewing

[wuhuizuo]

• Backgroup: https://internals.tidb.io/t/topic/854
• Ref: REQUEST: add prow OWNERS file to these repos and make prow config changes ti-community-infra/configs#824

What problem does this PR solve?

Issue Number: ref ti-community-infra/configs#824

What is changed and how it works?

• add repo prow OWNERS file

[ti-chi-bot]

[REVIEW NOTIFICATION]

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• breezewish

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[ti-chi-bot]

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[breezewish]

/merge

[ti-chi-bot]

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

Commit hash: 887d4a3

[wuhuizuo]

/cherry-pick release-6.1
/cherry-pick release-6.5
/cherry-pick release-7.1

[ti-chi-bot]

@wuhuizuo: new pull request created to branch release-6.1: #191.

In response to this:

/cherry-pick release-6.1
/cherry-pick release-6.5
/cherry-pick release-7.1

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[ti-chi-bot]

@wuhuizuo: new pull request created to branch release-6.5: #192.

In response to this:

/cherry-pick release-6.1
/cherry-pick release-6.5
/cherry-pick release-7.1

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.

[ti-chi-bot]

@wuhuizuo: new pull request created to branch release-7.1: #193.

In response to this:

/cherry-pick release-6.1
/cherry-pick release-6.5
/cherry-pick release-7.1

Instructions for interacting with me using PR comments are available here. If you have questions or suggestions related to my behavior, please file an issue against the ti-community-infra/tichi repository.