[DO NOT MERGE before adding the token] chore: update codecov-action to v4

[vil02]

 know more

Describe your change:

Same as TheAlgorithms/Rust#670 - it contains the description of the problem.

Before merging, please add the token from https://app.codecov.io/gh/TheAlgorithms/JavaScript/settings as CODECOV_TOKEN into the repo secrets.

Checklist:

• I have read CONTRIBUTING.md.
• This pull request is all my own work -- I have not plagiarized.
• I know that pull requests will not be merged if they fail the automated tests.

[codecov-commenter]

Codecov Report

All modified and coverable lines are covered by tests ✅

Comparison is base (6aaa376) 82.44% compared to head (8176408) 82.44%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master    #1605   +/-   ##
=======================================
  Coverage   82.44%   82.44%           
=======================================
  Files         377      377           
  Lines       19747    19747           
  Branches     2884     2885    +1     
=======================================
  Hits        16281    16281           
  Misses       3466     3466           

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[appgurueu]

It seems that in order to add the token, I would have to be logged in (on the codecov site) to access https://app.codecov.io/gh/TheAlgorithms/JavaScript/settings ? I'm slightly uncomfortable with this as it requests permission to "act on my behalf":

[vil02]

It seems that in order to add the token, I would have to be logged in (on the codecov site) to access https://app.codecov.io/gh/TheAlgorithms/JavaScript/settings ?

Yes.

I'm slightly uncomfortable with this as it requests permission to "act on my behalf":

I agree.