refactor(core): getStats is factorized

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🦙 MegaLinter status: ⚠️ WARNING

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
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✅ JSON	npm-package-json-lint	yes		no	0.74s
✅ JSON	prettier	4		0	0.93s
✅ JSON	v8r	4		0	13.59s
✅ MARKDOWN	markdownlint	5		0	0.73s
✅ MARKDOWN	markdown-link-check	5		0	3.46s
✅ REPOSITORY	checkov	yes		no	16.13s
✅ REPOSITORY	gitleaks	yes		no	0.41s
✅ REPOSITORY	git_diff	yes		no	0.39s
✅ REPOSITORY	grype	yes		no	14.81s
✅ REPOSITORY	trivy-sbom	yes		no	2.01s
✅ REPOSITORY	trufflehog	yes		no	15.93s
✅ YAML	prettier	16		0	1.02s
✅ YAML	v8r	16		0	12.27s
✅ YAML	yamllint	16		0	2.7s

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