fix: reschedule pings problem

[k-keisuke]

Fixes #1903

[codecov]

Codecov Report

Attention: Patch coverage is 75.00000% with 1 line in your changes missing coverage. Please review.

Project coverage is 81.25%. Comparing base (9fc79df) to head (74a4bcc).
Report is 39 commits behind head on main.

Files	Patch %	Lines
src/lib/client.ts	66.66%	0 Missing and 1 partial ⚠️

Additional details and impacted files

@@            Coverage Diff             @@
##             main    #1904      +/-   ##
==========================================
+ Coverage   80.96%   81.25%   +0.28%     
==========================================
  Files          24       24              
  Lines        1408     1467      +59     
  Branches      331      350      +19     
==========================================
+ Hits         1140     1192      +52     
- Misses        185      188       +3     
- Partials       83       87       +4     

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[robertsLando]

Please add also a test to cover this and fix lint issues: npm run lint-fix

Test info: https://github.com/mqttjs/MQTT.js/blob/main/DEVELOPMENT.md#tests

[k-keisuke]

Thanks for reviewing. I fix these and add test.

[robertsLando]

LGTM

[robertsLando]

Tests are good now and code too, just fix lint issues please: npm run lint-fix