client: skip if circuit breaker is disabled

[rleungx]

What problem does this PR solve?

Issue Number: ref #8678.

What is changed and how does it work?

After this PR, if we disable the circuit breaker, the metrics won't be recorded.

Check List

Tests

• Unit test

Release note

None.

[rleungx]

/cc @Tema

[ti-chi-bot]

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[rleungx]

/retest

[rleungx]

/retest

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 76.19%. Comparing base (30e8ed7) to head (edb46bc).
Report is 1 commits behind head on master.

Additional details and impacted files

@@            Coverage Diff             @@
##           master    #9078      +/-   ##
==========================================
+ Coverage   76.15%   76.19%   +0.04%     
==========================================
  Files         468      468              
  Lines       71435    71435              
==========================================
+ Hits        54404    54433      +29     
+ Misses      13617    13590      -27     
+ Partials     3414     3412       -2     

Flag	Coverage Δ
unittests	76.19% <100.00%> (+0.04%)	⬆️

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

[rleungx]

/retest

[ti-chi-bot]

[APPROVALNOTIFIER] This PR is APPROVED

This pull-request has been approved by: bufferflies, lhy1024

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• OWNERS [bufferflies,lhy1024]

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[ti-chi-bot]

[LGTM Timeline notifier]

Timeline:

• 2025-02-13 08:04:18.223429562 +0000 UTC m=+516500.619651624: ☑️ agreed by bufferflies.
• 2025-02-13 08:26:01.202653981 +0000 UTC m=+517803.598876044: ☑️ agreed by lhy1024.