Update ultimate-express.dockerfile

frameworks/JavaScript/ultimate-express/ultimate-express.dockerfile

@@ -1,5 +1,5 @@
 # syntax=docker/dockerfile:1
-FROM node:20-slim
+FROM node:22-slim
 
 WORKDIR /app
 
@@ -13,4 +13,4 @@ USER node
 
 EXPOSE 8080
 
-CMD ["node", "clustered.js"]
+CMD ["node", "clustered.js"]