unistore: Update unistore for assertion

[MyonKeminta]

What problem does this PR solve?

Issue Number: ref #26833

Problem Summary:

This is part of #31547 , which includes changes to unistore. This PR is split out to make it easier to update client-go.

What is changed and how it works?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)
• No code

Side effects

• Performance regression: Consumes more CPU
• Performance regression: Consumes more Memory
• Breaking backward compatibility

Documentation

• Affects user behaviors
• Contains syntax changes
• Contains variable changes
• Contains experimental features
• Changes MySQL compatibility

Release note

None

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• cfzjywxk
• ekexium

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[MyonKeminta]

/run-check_dev
/run-unit-test

[MyonKeminta]

/run-check_dev_2

[sre-bot]

Code Coverage Details: https://codecov.io/github/pingcap/tidb/commit/cf148615931db3f37396f9aa73dfb2e59effa42b

[MyonKeminta]

/merge

[ti-chi-bot]

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

Commit hash: 25dd32d

[ti-chi-bot]

@MyonKeminta: Your PR was out of date, I have automatically updated it for you.

At the same time I will also trigger all tests for you:

/run-all-tests

If the CI test fails, you just re-trigger the test that failed and the bot will merge the PR for you after the CI passes.

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