Fix docker-compose with new frontend Auth0 path

CHANGELOG.md

@@ -14,7 +14,7 @@
 
 ### Chore
 
-- [#8100](https://github.com/blockscout/blockscout/pull/8100) - Extend docker-compose configs with new config when front is running externally
+- [#8100](https://github.com/blockscout/blockscout/pull/8100), [#8103](https://github.com/blockscout/blockscout/pull/8103) - Extend docker-compose configs with new config when front is running externally
 
 <details>
   <summary>Dependencies version bumps</summary>

docker-compose/proxy/default.conf.template

@@ -30,6 +30,14 @@ server {
         proxy_pass          http://backend:4000;
     }
 
+    location /auth {
+        proxy_pass http://backend:4000;
+        proxy_http_version 1.1;
+        proxy_set_header Upgrade $http_upgrade;
+        proxy_set_header Connection "Upgrade";
+        proxy_set_header Host $host;
+    }
+
     location /socket {
         proxy_pass http://backend:4000;
         proxy_http_version 1.1;