fix: consistency, used this instead of that

[robertsLando]

By looking at the code I found that in some anonimous functions both this and that were used. Giving that this happens on events listeners both works but it would be better to only use one for consistency

[codecov]

Codecov Report

Patch coverage: 100.00% and no project coverage change.

Comparison is base (8d68c8c) 86.25% compared to head (be11701) 86.25%.

❗ Current head be11701 differs from pull request most recent head d651ee5. Consider uploading reports for the commit d651ee5 to get more accurate results

Additional details and impacted files

@@           Coverage Diff           @@
##             main    #1618   +/-   ##
=======================================
  Coverage   86.25%   86.25%           
=======================================
  Files          13       13           
  Lines        1317     1317           
=======================================
  Hits         1136     1136           
  Misses        181      181           

Impacted Files	Coverage Δ
lib/client.js	90.90% <100.00%> (ø)

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