Update link-check.yml

Author: rly

.github/workflows/link-check.yml

@@ -15,8 +15,11 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v4
 
+      - name: Update CA certificates
+        run: sudo update-ca-certificates
+
       - name: Link Checker
         id: lychee
         uses: lycheeverse/lychee-action@v2
         with:
-          args: --verbose --no-progress './content/**/*.md' './content/**/*.html' './content/**/*.rst' --insecure
+          args: --verbose --no-progress './content/**/*.md' './content/**/*.html' './content/**/*.rst'