fix(auth): oidc redirect does not respect https protocol (#1763)

nginx.conf

@@ -21,7 +21,7 @@ http {
             proxy_set_header Host $http_host;
             proxy_set_header X-Real-IP $remote_addr;
             proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
-            proxy_set_header X-Forwarded-Proto $scheme;
+            proxy_set_header X-Forwarded-Proto $http_x_forwarded_proto;
         }
     }
 }