Make markdown-links-check not blocking by default in MegaLinter base config

[github-actions[bot]]

🦙 MegaLinter status: ⚠️ WARNING

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	9		0	0.08s
⚠️ BASH	bash-exec	3		3	0.01s
✅ BASH	shfmt	3	0	0	0.09s
✅ COPYPASTE	jscpd	yes		no	16.38s
✅ DOCKERFILE	hadolint	1		0	0.11s
✅ JSON	npm-package-json-lint	yes		no	0.52s
⚠️ JSON	prettier	26	0	1	0.56s
✅ JSON	v8r	26		0	34.73s
⚠️ MARKDOWN	markdownlint	282	0	329	8.71s
✅ MARKDOWN	markdown-table-formatter	282	0	0	1.12s
✅ REPOSITORY	checkov	yes		no	18.49s
⚠️ REPOSITORY	gitleaks	yes		7	34.57s
⚠️ REPOSITORY	grype	yes		6	9.0s
✅ REPOSITORY	trivy	yes		no	26.18s
✅ REPOSITORY	trivy-sbom	yes		no	0.35s
✅ REPOSITORY	trufflehog	yes		no	5.45s
✅ SPELL	cspell	522		0	11.38s
⚠️ SPELL	lychee	325		8	2.94s
✅ TYPESCRIPT	eslint	178	0	0	9.87s
⚠️ TYPESCRIPT	prettier	178	0	1	0.4s
✅ XML	xmllint	4	0	0	0.09s
⚠️ YAML	prettier	15	0	1	0.28s
✅ YAML	v8r	15		0	10.58s
✅ YAML	yamllint	15		0	0.68s

See detailed report in MegaLinter reports

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