perf: run node directly when streaming (#10032)

dist/mastodon-streaming.service

@@ -9,7 +9,7 @@ WorkingDirectory=/home/mastodon/live
 Environment="NODE_ENV=production"
 Environment="PORT=4000"
 Environment="STREAMING_CLUSTER_NUM=1"
-ExecStart=/usr/bin/npm run start
+ExecStart=/usr/bin/node ./streaming
 TimeoutSec=15
 Restart=always