chore(deps): update actions/checkout action to v3

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v2 -> v3

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Release Notes

actions/checkout

v3

Compare Source

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Configuration

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[codecov]

Codecov Report

Merging #43 (c562d5c) into master (3d76015) will not change coverage.
The diff coverage is n/a.

@@           Coverage Diff           @@
##           master      #43   +/-   ##
=======================================
  Coverage   97.93%   97.93%           
=======================================
  Files           9        9           
  Lines         145      145           
=======================================
  Hits          142      142           
  Misses          3        3           

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