infoschema: fix the issue txn state size is not defined (#53801)

[ti-chi-bot]

This is an automated cherry-pick of #53801

What problem does this PR solve?

Issue Number: close #53026

Problem Summary:
Fix the issue the size is not defined for tidb_trx table.

What changed and how does it work?

Check List

Tests

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

  • I checked and no code files have been changed.

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

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

Fix the issue the size is not defined for `tidb_trx` table.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (release-7.1@409465c). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-7.1     #53823   +/-   ##
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  Misses                 ?      83173           
  Partials               ?      17854           

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: crazycs520, ekexium

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-11-04 12:57:44.653896363 +0000 UTC m=+872977.493051909: ☑️ agreed by crazycs520.
• 2024-11-04 13:43:21.805469133 +0000 UTC m=+875714.644624679: ☑️ agreed by ekexium.