Add domain config to avoid 400 when request is redirected to https

Author: weilu

.github/workflows/ci.yaml

@@ -44,6 +44,7 @@ jobs:
           echo 'DEMO_DATASET=true' >> .env
           echo 'BE_TAG=develop' >> .env
           echo 'FE_TAG=develop' >> .env
+          echo 'DOMAIN=localhost' >> .env
           echo 'HOSTS=localhost' >> .env
           cp .env.cache.example .env.cache
           cp .env.openSearch.example .env.openSearch