Add Creative Commons license URL to ignore list (#1585)

Author: themr0c

.htmltest.yml

@@ -13,6 +13,7 @@ IgnoreURLs: # List URLS that are not published, false positives, websites refusi
   # Unauthorized (403)
   - "^./pr-.*/index.html$"
   - "^index.html$"
+  - http://creativecommons.org/licenses/by-sa/3.0/
   - https://developers.redhat.com
   - https://docs.github.com/
   - https://docs.redhat.com/en/documentation/red_hat_developer_hub/1.9