chore(deps): bump lycheeverse/lychee-action from 1.9.0 to 2.0.2

Bumps [lycheeverse/lychee-action](https://github.com/lycheeverse/lychee-action) from 1.9.0 to 2.0.2.
- [Release notes](https://github.com/lycheeverse/lychee-action/releases)
- [Commits](lycheeverse/lychee-action@v1.9.0...v2.0.2)

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

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

.github/workflows/nix-ci.yml

@@ -112,7 +112,7 @@ jobs:
         if: matrix.name == 'Nix Linux'
       - name: Check manual for broken links
         id: lychee
-        uses: lycheeverse/lychee-action@v1.9.0
+        uses: lycheeverse/lychee-action@v2.0.2
         with:
           fail: false  # report errors but do not block CI on temporary failures
           # gmplib.org consistently times out from GH actions