chore(deps): update actions/checkout action to v6

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v4 → v6

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Release Notes

actions/checkout (actions/checkout)

v6

Compare Source

v5

Compare Source

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Latest commit: 68d790d

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 96.72%. Comparing base (2600447) to head (68d790d).

Additional details and impacted files

@@           Coverage Diff            @@
##           develop     #755   +/-   ##
========================================
  Coverage    96.72%   96.72%           
========================================
  Files           91       91           
  Lines         2291     2291           
  Branches       511      511           
========================================
  Hits          2216     2216           
  Misses          60       60           
  Partials        15       15           

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