feat: add codecov service

[heitorlessa]

Issue #, if available:

Description of changes:

One or two sentences as a summary of what's being changed

• Meet tenets criteria
• Update tests
• Update docs
• PR title follows conventional commit semantics

Breaking change checklist

Ignore if it's not a breaking change

RFC issue #:

• Migration process documented
• Implement warnings (if it can live side by side)

By submitting this pull request, I confirm that you can use, modify, copy, and redistribute this contribution, under the terms of your choice.

[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (develop@7cab984). Click here to learn what that means.
The diff coverage is n/a.

@@            Coverage Diff             @@
##             develop      #59   +/-   ##
==========================================
  Coverage           ?   99.37%           
==========================================
  Files              ?       15           
  Lines              ?      482           
  Branches           ?       44           
==========================================
  Hits               ?      479           
  Misses             ?        3           
  Partials           ?        0           

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