[demo] Bump gethue to 4.9.4

tools/examples/components/sql-scratchpad/package.json

@@ -10,7 +10,7 @@
     "@types/node": "^12.20.4",
     "@types/react": "^17.0.2",
     "@types/react-dom": "^17.0.1",
-    "gethue": "4.9.3",
+    "gethue": "4.9.4",
     "react": "^17.0.1",
     "react-dom": "^17.0.1",
     "react-scripts": "4.0.3",