Remove Codecov

[itsgarcia]

Description

Removes Codecov bash uploader use as it is deprecated.

Type of change

• This change requires a documentation update 📖

Checklist:

• I have 🎩 my changes (A 🎩 specifically includes pulling down changes, setting them up, and manually testing the changed features and potential side effects to make sure nothing is broken)
• I have performed a self-review of my own code
• I have made corresponding changes to the documentation
• I have added tests that prove my fix is effective or that my feature works
• New and existing unit tests pass locally with my changes
• The test coverage did not decrease

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[ghost]

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