go.mod: upgrade PD client to fix the TSO hang absolutely

[JmPotato]

What problem does this PR solve?

Issue Number: close #51894, close tikv/pd#7849, close #52013.

Problem Summary:

• Upgrade PD client to adopt client/tso: double-check the contexts to prevent waiting for TSO requests in closed chan tikv/pd#7962 to fix the TSO hang absolutely.
• Adopt client/http: fix the panic when merging empty RegionsInfo tikv/pd#7970.

What changed and how does it work?

Check List

Tests

• Unit test
• Integration test
• Manual test (add detailed scripts or steps below)

Release note

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

None

[codecov]

Codecov Report

Merging #51985 (cc18069) into master (5fd2219) will decrease coverage by 17.7240%.
Report is 14 commits behind head on master.
The diff coverage is n/a.

Additional details and impacted files

@@                Coverage Diff                @@
##             master     #51985         +/-   ##
=================================================
- Coverage   72.3907%   54.6668%   -17.7240%     
=================================================
  Files          1481       1592        +111     
  Lines        365298     610663     +245365     
=================================================
+ Hits         264442     333830      +69388     
- Misses        81271     253625     +172354     
- Partials      19585      23208       +3623     

Flag	Coverage Δ
integration	36.6513% <ø> (?)
unit	70.4307% <ø> (-1.8396%)	⬇️

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

Components	Coverage Δ
dumpling	53.9957% <ø> (-2.3014%)	⬇️
parser	∅ <ø> (∅)
br	51.3985% <ø> (+5.0579%)	⬆️

[zimulala]

/check-issue-triage-complete

[JmPotato]

/test check-dev2

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[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: nolouch, zimulala

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2024-03-22 07:45:56.191687147 +0000 UTC m=+1621983.213933536: ☑️ agreed by nolouch.
• 2024-03-22 07:55:02.803967637 +0000 UTC m=+1622529.826214024: ☑️ agreed by zimulala.

[ti-chi-bot]

In response to a cherrypick label: new pull request created to branch release-7.1: #52710.