⬆️ deps: Upgrade actions/checkout action to v4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v3 -> v4

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Release Notes

actions/checkout (actions/checkout)

v4

Compare Source

• Support fetching without the --progress option
• Update to node20

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Configuration

📅 Schedule: Branch creation - "after 10pm every weekday,before 5am every weekday,every weekend" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

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[codecov-commenter]

Codecov Report

❗ No coverage uploaded for pull request base (main@ce7cd5b). Click here to learn what that means.
Patch has no changes to coverable lines.

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Additional details and impacted files

@@           Coverage Diff            @@
##             main       #83   +/-   ##
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  Coverage        ?   100.00%           
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  Files           ?         2           
  Lines           ?        15           
  Branches        ?         0           
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  Hits            ?        15           
  Misses          ?         0           
  Partials        ?         0           

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