Add lychee

[ruzickap]

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[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[stale]

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

[github-actions]

MegaLinter status: ✅ SUCCESS

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	4		0	0.03s
✅ CREDENTIALS	secretlint	yes		no	1.25s
✅ GIT	git_diff	yes		no	0.01s
✅ MARKDOWN	markdownlint	2	0	0	0.54s
✅ MARKDOWN	markdown-table-formatter	2	0	0	0.32s
✅ SPELL	misspell	8	0	0	0.05s
✅ YAML	prettier	5	2	0	0.77s
✅ YAML	yamllint	5		0	0.22s

See errors details in artifact MegaLinter reports on CI Job page
Set VALIDATE_ALL_CODEBASE: true in mega-linter.yml to validate all sources, not only the diff