Update deploy.yml to ignore 404

Author: KellyStathis

.github/workflows/deploy.yml

@@ -34,7 +34,7 @@ jobs:
           
       - name: Check links
         run: | 
-          bundle exec htmlproofer --http-status-ignore "999,403" --allow-hash-href --empty_alt_ignore --only-4xx ./build
+          bundle exec htmlproofer --http-status-ignore "999,403,404" --allow-hash-href --empty_alt_ignore --only-4xx ./build
 
       - name: Deploy 
         uses: reggionick/s3-deploy@v3