build site for weekly linkcheck

Author: willingc

.github/workflows/linkcheck.yml

@@ -12,6 +12,12 @@ jobs:
     steps:
       - uses: actions/checkout@v4
 
+      - name: Build Jekyll site
+        uses: helaili/jekyll-action@v2
+        with:
+          build_only: true
+          build_dir: _site
+
       - name: Link Checker
         id: lychee
         uses: lycheeverse/lychee-action@v1.9.0