tests/tso: add IDAllocator to make keyspace test stable

[HuSharp]

What problem does this PR solve?

Issue Number: Close #8099

What is changed and how does it work?

add IDAllocator to make test stable

Check List

Tests

• Integration test

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• JmPotato
• nolouch

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 77.23%. Comparing base (7731ee4) to head (65ca783).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #8202      +/-   ##
==========================================
- Coverage   77.34%   77.23%   -0.12%     
==========================================
  Files         471      471              
  Lines       61398    61407       +9     
==========================================
- Hits        47489    47426      -63     
- Misses      10350    10412      +62     
- Partials     3559     3569      +10     

Flag	Coverage Δ
unittests	77.23% <100.00%> (-0.12%)	⬇️

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[HuSharp]

/hold
test still failed

[HuSharp]

/unhold

[HuSharp]

/merge

[ti-chi-bot]

@HuSharp: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

You only need to trigger /merge once, and 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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[ti-chi-bot]

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

Commit hash: d163cbe

[ti-chi-bot]

@HuSharp: Your PR was out of date, I have automatically updated it for you.

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.

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.