executor: fix a bug that global temporary table send cop request (#58882)

[ti-chi-bot]

This is an automated cherry-pick of #58882

What problem does this PR solve?

Issue Number: close #58875

Problem Summary:

What changed and how does it work?

For temporary table, we set a 'dummy' flag to its TableReader/IndexReader/IndexReader etc
So it would be a dummy operation and not sending coprocessor request to tikv.

The bug is that in executor/builder.go, we have executorBuilder and dataReaderBuilder, two difficult code branch.
The dummy is only set in the executorBuilder...

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.

None

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[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Please upload report for BASE (release-8.1@5fbcd40). Learn more about missing BASE report.

Additional details and impacted files

@@               Coverage Diff                @@
##             release-8.1     #59116   +/-   ##
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  Coverage               ?   71.2143%           
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  Files                  ?       1468           
  Lines                  ?     423979           
  Branches               ?          0           
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  Hits                   ?     301934           
  Misses                 ?     101517           
  Partials               ?      20528           

Flag	Coverage Δ
unit	71.2143% <100.0000%> (?)

Flags with carried forward coverage won't be shown. Click here to find out more.

Components	Coverage Δ
dumpling	52.9656% <0.0000%> (?)
parser	∅ <0.0000%> (?)
br	41.4340% <0.0000%> (?)

[ti-chi-bot]

@ti-chi-bot: The following test failed, say /retest to rerun all failed tests or /retest-required to rerun all mandatory failed tests:

Test name	Commit	Details	Required	Rerun command
idc-jenkins-ci-tidb/check_dev_2	0a6752d	link	true	/test check-dev2

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