executor: fix that traffic replay from S3 always report an error

[djshow832]

What problem does this PR solve?

Issue Number: close #59811

Problem Summary:

• Traffic replay from S3 always reports tiproxy instances number is less than input paths number
• The URL paths passed to TiProxy miss parameters like access key and endpoint

What changed and how does it work?

• Extract the right subdirectory from the URL path and then assign it to TiProxy
• Create another *url.URL object because the previous one is updated in parsing

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.

Manual test: manually execute traffic replay from S3 and check the result.

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 @djshow832. Thanks for your PR.

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[codecov]

Codecov Report

Attention: Patch coverage is 76.19048% with 5 lines in your changes missing coverage. Please review.

Project coverage is 73.4859%. Comparing base (4cf94a7) to head (ea6264d).
Report is 15 commits behind head on master.

Additional details and impacted files

@@               Coverage Diff                @@
##             master     #59813        +/-   ##
================================================
+ Coverage   72.9611%   73.4859%   +0.5248%     
================================================
  Files          1697       1699         +2     
  Lines        468962     473297      +4335     
================================================
+ Hits         342160     347807      +5647     
+ Misses       105734     104236      -1498     
- Partials      21068      21254       +186     

Flag	Coverage Δ
integration	42.8191% <0.0000%> (?)
unit	72.1781% <76.1904%> (+0.0262%)	⬆️

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

Components	Coverage Δ
dumpling	52.6910% <ø> (ø)
parser	∅ <ø> (∅)
br	45.0309% <ø> (-0.0854%)	⬇️

[djshow832]

/ok-to-test

[djshow832]

/retest

[YangKeao]

LGTM

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: xhebox, YangKeao

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Needs approval from an approver in each of these files:

• OWNERS [YangKeao,xhebox]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-02-27 08:12:32.486752126 +0000 UTC m=+516300.439910392: ☑️ agreed by xhebox.
• 2025-02-27 08:47:30.190316891 +0000 UTC m=+518398.143475142: ☑️ agreed by YangKeao.