Update Dockerfile to use Node.js 22-alpine and add CI/CD workflow for build and deployment

Dockerfile

@@ -1,10 +1,10 @@
-FROM node:20-alpine AS deps
+FROM node:22-alpine AS deps
 WORKDIR /app
 RUN apk add --no-cache libc6-compat
 COPY package*.json ./
 RUN npm ci
 
-FROM node:20-alpine AS builder
+FROM node:22-alpine AS builder
 WORKDIR /app
 COPY --from=deps /app/node_modules ./node_modules
 COPY . .
@@ -17,7 +17,7 @@ ENV NEXT_TELEMETRY_DISABLED=1
 ENV NODE_ENV=production
 RUN npm run build
 
-FROM node:20-alpine AS runner
+FROM node:22-alpine AS runner
 WORKDIR /app
 ENV NODE_ENV=production
 ENV NEXT_TELEMETRY_DISABLED=1