Stream Git responses without proxy temporary file buffering

deployment/geranas/nginx.conf.in

@@ -51,6 +51,7 @@ http {
             proxy_set_header X-Forwarded-Proto https;
             proxy_read_timeout 120s;
             proxy_request_buffering off;
+            proxy_buffering off;
             add_header X-Content-Type-Options nosniff always;
             add_header Referrer-Policy strict-origin-when-cross-origin always;
         }