Update link checker, as the original is deprecated: gaurav-nelson/github-action-markdown-link-check

Fix the warning for the incorrect ignored link config:
 Unexpected input(s) 'ignore', valid inputs are ['entryPoint', 'args', 'use-quiet-mode', 'use-verbose-mode', 'config-file', 'folder-path', 'max-depth', 'check-modified-files-only', 'base-branch', 'file-extension', 'file-path']