Update codecov/codecov-action action to v3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
codecov/codecov-action	action	major	v2 -> v3

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Release Notes

codecov/codecov-action

v3

Compare Source

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Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Disabled by config. Please merge this manually once you are satisfied.

♻ Rebasing: Whenever PR becomes conflicted, or you tick the rebase/retry checkbox.

🔕 Ignore: Close this PR and you won't be reminded about this update again.

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• If you want to rebase/retry this PR, check this box

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[codecov]

Codecov Report

Patch and project coverage have no change.

Comparison is base (276bf84) 71.73% compared to head (2ffadd4) 71.73%.

Additional details and impacted files

@@            Coverage Diff            @@
##               main      #35   +/-   ##
=========================================
  Coverage     71.73%   71.73%           
  Complexity      101      101           
=========================================
  Files            10       10           
  Lines           329      329           
=========================================
  Hits            236      236           
  Misses           93       93           

Flag	Coverage Δ
unittests	71.73% <ø> (ø)

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