*: fix some typos in code comments

[lilin90]

What problem does this PR solve?

Issue Number: N/A

Problem Summary: Fix some typos in code comments for 43 files.

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 is 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

[codecov]

Codecov Report

Attention: Patch coverage is 78.57143% with 3 lines in your changes are missing coverage. Please review.

Project coverage is 74.6317%. Comparing base (9581442) to head (4d98017).
Report is 8 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #53371        +/-   ##
================================================
+ Coverage   72.5153%   74.6317%   +2.1163%     
================================================
  Files          1505       1505                
  Lines        429836     430707       +871     
================================================
+ Hits         311697     321444      +9747     
+ Misses        98832      89376      -9456     
- Partials      19307      19887       +580     

Flag	Coverage Δ
integration	49.1518% <50.0000%> (?)
unit	71.3793% <78.5714%> (-0.0306%)	⬇️

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

Components	Coverage Δ
dumpling	53.9957% <ø> (ø)
parser	∅ <ø> (∅)
br	50.4640% <ø> (+9.0803%)	⬆️

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-05-19 05:46:35.453578716 +0000 UTC m=+1977749.210714289: ☑️ agreed by ngaut.
• 2024-05-20 02:04:15.664337393 +0000 UTC m=+2050809.421472966: ☑️ agreed by lance6716.

[lance6716]

/assign @windtalker @yudongusa

[ti-chi-bot]

@lance6716: GitHub didn't allow me to assign the following users: yudongusa.

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In response to this:

/assign @windtalker @yudongusa

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[windtalker]

LGTM

[easonn7]

/approve

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: easonn7, lance6716, ngaut, windtalker

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Needs approval from an approver in each of these files:

• OWNERS [lance6716,ngaut,windtalker]
• pkg/disttask/OWNERS [lance6716]
• pkg/domain/OWNERS [lance6716]
• pkg/expression/OWNERS [windtalker]
• pkg/sessionctx/variable/OWNERS [easonn7]

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