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
actions/checkout	action	major	v4.2.2 → v6.0.2

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Release Notes

actions/checkout (actions/checkout)

v6

Compare Source

v5

Compare Source

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Configuration

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[github-actions]

🦙 MegaLinter status: ⚠️ WARNING

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ COPYPASTE	jscpd	yes		no	1.09s
✅ JSON	jsonlint	5		0	0.17s
⚠️ JSON	prettier	5		1	0.29s
✅ JSON	v8r	5		0	20.54s
✅ REPOSITORY	gitleaks	yes		no	0.13s
✅ REPOSITORY	git_diff	yes		no	0.0s
✅ REPOSITORY	grype	yes		no	16.93s
✅ REPOSITORY	secretlint	yes		no	0.81s
✅ REPOSITORY	trivy	yes		no	5.52s
✅ REPOSITORY	trivy-sbom	yes		no	0.14s
✅ REPOSITORY	trufflehog	yes		no	2.42s
✅ XML	xmllint	1		0	0.0s
⚠️ YAML	prettier	9		1	0.62s
✅ YAML	v8r	6		0	8.47s
✅ YAML	yamllint	9		0	0.43s

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