Added --exclude openuserjs\.org to lychee args

Author: adamlui

.github/workflows/validate-links-on-push-pr.yml

@@ -36,7 +36,7 @@ jobs:
             --include-fragments --index-files README.md --exclude "#readme"
             --accept 200..299,300..399,403,429
             --cache --max-cache-age 3d
-            --exclude api\.star-history\.com --exclude ghostbrowser\.com
+            --exclude api\.star-history\.com --exclude ghostbrowser\.com --exclude openuserjs\.org
         env:
           GITHUB_TOKEN: ${{secrets.GITHUB_TOKEN}}