Upgrade Node base image to v22 in Dockerfile

Dockerfile

@@ -1,11 +1,11 @@
-FROM node:18-alpine AS build
+FROM node:22-alpine AS build
 WORKDIR /app
 COPY package*.json ./
 RUN npm install --legacy-peer-deps
 COPY . .
 RUN npm run build
 
-FROM node:18-alpine AS runtime
+FROM node:22-alpine AS runtime
 WORKDIR /app
 COPY --from=build /app/dist ./dist
 COPY --from=build /app/node_modules ./node_modules