Add back ts-node for Gulp

Author: koesie10

extensions/ql-vscode/package-lock.json

@@ -2093,6 +2093,7 @@
     "through2": "^4.0.2",
     "ts-jest": "^29.1.2",
     "ts-json-schema-generator": "^2.1.1",
+    "ts-node": "^10.9.2",
     "ts-unused-exports": "^10.0.0",
     "typescript": "^5.0.2",
     "vite": "^5.2.6",