*: update TiProxy logic and fix goroutine leak

[xhebox]

Signed-off-by: xhe xw897002528@gmail.com

What problem does this PR solve?

Found goroutine leak in long-running tests, ref pingcap/tiproxy#149. Two things are changed:

1. update TiProxy version to prevent leak.
2. update TiProxy config change/health check logic to adapt the new TiProxy version.

Code changes

• Has Go code change
• Has CI related scripts change

Tests

• Unit test
• E2E test
• Manual test
• No code

Side effects

• Breaking backward compatibility
• Other side effects:

Related changes

• Need to cherry-pick to the release branch
• Need to update the documentation

Release Notes

Please refer to Release Notes Language Style Guide before writing the release note.

Fix bug that operator may have goroutine leaks with TiProxy enabled in the long-running.

[ti-chi-bot]

[REVIEW NOTIFICATION]

This pull request has been approved by:

• KanShiori
• csuzhangxc

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[codecov-commenter]

Codecov Report

Merging #4802 (48a8b37) into master (c98a97b) will increase coverage by 8.90%.
The diff coverage is 0.00%.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #4802      +/-   ##
==========================================
+ Coverage   59.78%   68.68%   +8.90%     
==========================================
  Files         223      227       +4     
  Lines       25008    27976    +2968     
==========================================
+ Hits        14951    19216    +4265     
+ Misses       8654     7341    -1313     
- Partials     1403     1419      +16     

Flag	Coverage Δ
e2e	53.71% <0.00%> (?)
unittest	59.80% <0.00%> (+0.02%)	⬆️

[csuzhangxc]

/test pull-e2e-kind-serial

[xhebox]

/test pull-e2e-kind-serial
/test pull-e2e-kind

[xhebox]

/test pull-e2e-kind-across-kubernetes

[xhebox]

/test pull-e2e-kind-serial
/test pull-e2e-kind

[csuzhangxc]

/merge

[ti-chi-bot]

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

Commit hash: 48a8b37