*: update client-go to optimize region cache after merging many regions

[sticnarf]

What problem does this PR solve?

Issue Number: close #37141

Problem Summary:

What is changed and how it works?

Update client-go to include tikv/client-go#566

Check List

Tests

• Manual test

Split many regions and merge. Profile TiDB when accessing the merged part, searching region cache should be cheap.

Release note

Please refer to Release Notes Language Style Guide to write a quality release note.

Optimize the performance of the region cache after merging many regions.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• ekexium
• hawkingrei

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[sticnarf]

/merge

[ti-chi-bot]

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

Commit hash: d01bbd0

[sre-bot]

Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/ef66869b17d0922c1487d78a26cac6e1b00911b2

[sre-bot]

TiDB MergeCI notify

✅ Well Done! New fixed [1] after this pr merged.

CI Name	Result	Duration	Compare with Parent commit
idc-jenkins-ci-tidb/tics-test	✅ all 1 tests passed	8 min 42 sec	Fixed
idc-jenkins-ci/integration-cdc-test	🟢 all 36 tests passed	35 min	Existing passed
idc-jenkins-ci-tidb/integration-common-test	🟢 all 17 tests passed	15 min	Existing passed
idc-jenkins-ci-tidb/common-test	🟢 all 11 tests passed	14 min	Existing passed
idc-jenkins-ci-tidb/integration-ddl-test	🟢 all 6 tests passed	6 min 49 sec	Existing passed
idc-jenkins-ci-tidb/sqllogic-test-2	🟢 all 28 tests passed	6 min 1 sec	Existing passed
idc-jenkins-ci-tidb/sqllogic-test-1	🟢 all 26 tests passed	5 min 34 sec	Existing passed
idc-jenkins-ci-tidb/mybatis-test	🟢 all 1 tests passed	3 min 29 sec	Existing passed
idc-jenkins-ci-tidb/integration-compatibility-test	🟢 all 1 tests passed	3 min 1 sec	Existing passed
idc-jenkins-ci-tidb/plugin-test	🟢 build success, plugin test success	4min	Existing passed