uno Link validations

Migrated from https://github.com/unoplatform/uno/pull/17915 for new workflow validation

GitHub Issue (If applicable): closes https://github.com/unoplatform/uno/issues/17616

PR Type

What kind of change does this PR introduce?

Build or CI related changes

What is the current behavior?

What is the new behavior?

PR Checklist

Please check if your PR fulfills the following requirements:

[ ] Docs have been added/updated which fit documentation template (for bug fixes / features)
[ ] Unit Tests and/or UI Tests for the changes have been added (for bug fixes / features) (if applicable)
[ ] Validated PR Screenshots Compare Test Run results.
[ ] Contains NO breaking changes
[ ] Associated with an issue (GitHub or internal) and uses the automatic close keywords.
[ ] Commits must be following the Conventional Commits specification.

Other information

Internal Issue (If applicable): NOTE: The filiph/linkcheck tool doesn't seem to run when adding link on website, seems to only work with repo files, we would need to specify this in every repo to work. Is there a way to do it cross-repo? Running it on unodocsprstaging.z13.web.core.windows.net/pr-17915/index.html should work, but probably other tool is needed? Or something needs to be specified.