*: use tikv/client-go/v2

[disksing]

Signed-off-by: disksing i@disksing.com

What problem does this PR solve?

We want to use client-go/v2 and remove store/tikv.

Part of pingcap/tidb#22513

wait for pingcap/tidb#25359

What is changed and how it works?

What's Changed:

• Use tikv/client-go/v2 to replace github.com/pingcap/tidb/store/tikv.
• Disable some tests temporarily, as the embedded BR in tidb-server cannot work before upgrading.

Check List

Tests

• Unit test

Release note

• No release note

[disksing]

/run-integration_test

[disksing]

/run-all-tests

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[REVIEW NOTIFICATION]

This pull request has been approved by:

• lonng
• overvenus

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[disksing]

/merge

[ti-chi-bot]

@disksing: /merge is only allowed for the committers, you can assign this pull request to the committer in list by filling /assign @committer in the comment to help merge this pull request.

In response to this:

/merge

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[lonng]

/merge

[ti-chi-bot]

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

Commit hash: aacd732