Make external link checker compatible with 4.*

.gitlab-ci.yml

@@ -158,15 +158,17 @@ test:htmlproofer:external_links:
     - build:production
   needs: ["build:production"]
   script:
-    - "bundle exec htmlproofer \
-        --internal-domains localhost:4000 \
-        --allow-hash-href \
-        --url-ignore '/www.openstoragenetwork.org/,/www.hzdr.de/,/indico4.twgrid.org/,/webfts.fedcloud-tf.fedcloud.eu/' \
-        --assume-extension public/"
+    - >
+        bundle exec htmlproofer public
+        --disable-external=false
+        --enforce-https=false
+        --ignore-urls='/www.openstoragenetwork.org/,/www.hzdr.de/,/indico4.twgrid.org/,/webfts.fedcloud-tf.fedcloud.eu/'
+        --ignore-status-codes=429
+        --check-external-hash=false
+        --typhoeus='{"headers":{"User-Agent":"Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:105.0) Gecko/20100101 Firefox/105.0"}}'
+        --only-4xx
   rules:
     - if: '$CI_PIPELINE_SOURCE == "schedule"'
-  tags:
-    - internal
   allow_failure: true
 
 review: