*: impl mock PD service discovery and update pd client version

[CabinfeverB]

What problem does this PR solve?

Issue Number: ref #35319

Problem Summary:

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.

None

[tiprow]

Hi @CabinfeverB. Thanks for your PR.

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[CabinfeverB]

/ok-to-test

[codecov]

Codecov Report

Merging #50718 (eb3d6f8) into master (40f0d16) will increase coverage by 2.6337%.
Report is 13 commits behind head on master.
The diff coverage is 51.4285%.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #50718        +/-   ##
================================================
+ Coverage   72.1359%   74.7696%   +2.6337%     
================================================
  Files          1456       1458         +2     
  Lines        347738     423664     +75926     
================================================
+ Hits         250844     316772     +65928     
- Misses        76509      87064     +10555     
+ Partials      20385      19828       -557     

Flag	Coverage Δ
integration	48.9028% <14.4927%> (?)
unit	70.2659% <44.2857%> (-1.8380%)	⬇️

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

Components	Coverage Δ
dumpling	54.0269% <ø> (-2.2860%)	⬇️
parser	∅ <ø> (∅)
br	56.7945% <83.3333%> (+4.5799%)	⬆️

[CabinfeverB]

/retest-required

[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-01-25 06:51:00.571051768 +0000 UTC m=+1029902.135349474: ☑️ agreed by lance6716.
• 2024-01-25 07:31:21.750304603 +0000 UTC m=+1032323.314602307: ☑️ agreed by hawkingrei.

[hawkingrei]

/retest

[CabinfeverB]

/test build

[tiprow]

@CabinfeverB: The specified target(s) for /test were not found.
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In response to this:

/test build

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[lance6716]

/cc @Leavrth

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: hawkingrei, lance6716, Leavrth, zimulala

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