npm/compute: also update ws there to fix consistency check

Author: haraldschilly

src/compute/compute/package.json

@@ -42,7 +42,7 @@
     "cookie": "^0.5.0",
     "debug": "^4.3.2",
     "websocketfs": "^0.17.2",
-    "ws": "^8.13.0"
+    "ws": "^8.18.0"
   },
   "homepage": "https://github.com/sagemathinc/cocalc/tree/master/src/packages/compute",
   "repository": {