Bump lycheeverse/lychee-action from 2.6.0 to 2.6.1 (#1243)

Bumps [lycheeverse/lychee-action](https://github.com/lycheeverse/lychee-action) from 2.6.0 to 2.6.1.
- [Release notes](https://github.com/lycheeverse/lychee-action/releases)
- [Commits](lycheeverse/lychee-action@v2.6.0...v2.6.1)

---
updated-dependencies:
- dependency-name: lycheeverse/lychee-action
  dependency-version: 2.6.1
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <[email protected]>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

.github/workflows/nestml-build.yml

@@ -14,7 +14,7 @@ jobs:
       - uses: actions/checkout@v5
 
       - name: Link Checker
-        uses: lycheeverse/[email protected].0
+        uses: lycheeverse/[email protected].1
         with:
           args: --verbose --no-progress **/*.md **/*.html **/*.rst
           fail: true