Revert "Upgrade linkcheck"

[shiranr]

Reverts #1000

[github-actions]

🦙 MegaLinter status: ❌ ERROR

Descriptor	Linter	Files	Fixed	Errors	Elapsed time
✅ ACTION	actionlint	2		0	0.09s
⚠️ MARKDOWN	markdownlint	245		9	7.22s
✅ MARKDOWN	markdown-table-formatter	245		0	1.4s
❌ MDLINKCHECK	linkcheck	245		3	11.68s
⚠️ SPELL	cspell	256		6	18.27s
✅ YAML	prettier	10		0	0.99s
✅ YAML	yamllint	10		0	0.51s

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