build(deps): Bump lycheeverse/lychee-action from 1.9.0 to 2.8.0

Bumps [lycheeverse/lychee-action](https://github.com/lycheeverse/lychee-action) from 1.9.0 to 2.8.0.
- [Release notes](https://github.com/lycheeverse/lychee-action/releases)
- [Commits](lycheeverse/lychee-action@v1.9.0...8646ba3)

---
updated-dependencies:
- dependency-name: lycheeverse/lychee-action
  dependency-version: 2.8.0
  dependency-type: direct:production
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

Author: dependabot[bot]

.github/workflows/markdown-link-check.yml

@@ -22,7 +22,7 @@ jobs:
 
       - name: Run Link Checker
         if: steps.changed-files.outputs.any_changed == 'true'
-        uses: lycheeverse/lychee-action@22134d37a1fff6c2974df9c92a7c7e1e86a08f9c # v1.9.0
+        uses: lycheeverse/lychee-action@8646ba30535128ac92d33dfc9133794bfdd9b411 # v2.8.0
         with:
           # Configuration is defined here directly in YAML (no JSON file needed)
           # --exclude-loopback: ignores localhost/127.0.0.1