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

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
actions/checkout	action	major	v5 -> v6

Checklist

• I checked this package version in snyk \
• I labeled PR as 'PR needs visual test' \
• I checked this update locally \
• QA engineers checked this update

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Release Notes

actions/checkout (actions/checkout)

v6

Compare Source

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