*: add defer to logs the panic reason and stack (#6123)

[ti-chi-bot]

This is an automated cherry-pick of #6123

What problem does this PR solve?

Issue Number: Ref #6099

What is changed and how does it work?

add defer logs the panic reason and stack

Check List

Tests

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

Release note

None.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• bufferflies
• rleungx

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After your PR has acquired the required number of LGTMs, you can assign this pull request to the committer in the list by filling /assign @committer in the comment to help you merge this pull request.

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[HuSharp]

/cherry-pick-invite

[ti-chi-bot]

@HuSharp Please accept the invitation then you can push to the cherry-pick pull requests.
Comment with "/cherry-pick-invite" if the invitation is expired.
https://github.com/ti-chi-bot/pd/invitations

[codecov]

Codecov Report

Patch coverage: 100.00% and project coverage change: +0.04 🎉

Comparison is base (39a4de6) 75.39% compared to head (a8648f1) 75.43%.

Additional details and impacted files

@@               Coverage Diff               @@
##           release-6.1    #6153      +/-   ##
===============================================
+ Coverage        75.39%   75.43%   +0.04%     
===============================================
  Files              307      307              
  Lines            30493    30502       +9     
===============================================
+ Hits             22989    23008      +19     
- Misses            5496     5502       +6     
+ Partials          2008     1992      -16     

Flag	Coverage Δ
unittests	75.43% <100.00%> (+0.04%)	⬆️

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

Impacted Files	Coverage Δ
pkg/cache/ttl.go	97.95% <100.00%> (+0.02%)	⬆️
pkg/systimemon/systimemon.go	100.00% <100.00%> (ø)
server/election/lease.go	84.50% <100.00%> (+0.44%)	⬆️
server/region_syncer/client.go	85.92% <100.00%> (+6.07%)	⬆️
server/tso/allocator_manager.go	63.07% <100.00%> (-0.49%)	⬇️
server/tso/global_allocator.go	62.76% <100.00%> (+0.19%)	⬆️

... and 22 files with indirect coverage changes

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[HuSharp]

@bufferflies @rleungx PTAL thx!

[rleungx]

/merge

[ti-chi-bot]

@rleungx: It seems you want to merge this PR, I will help you trigger all the tests:

/run-all-tests

Details

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[ti-chi-bot]

This pull request has been accepted and is ready to merge.

Details

Commit hash: a8648f1