bump lychee version

Author: ov7a

.github/workflows/deploy.yml

@@ -41,7 +41,7 @@ jobs:
           JEKYLL_ENV: production
 
       - name: Check links
-        uses: lycheeverse/lychee-action@v2.0.0
+        uses: lycheeverse/lychee-action@v2.6.1
         with:
           # excluded # and ## as they used in the gallery
           args: >