chore: update container Dockerfiles to Node 22 LTS and nginx stable (#14687)

Author: svidgen

packages/amplify-container-hosting/resources/express-template/Dockerfile

@@ -1,4 +1,4 @@
-FROM public.ecr.aws/bitnami/node:14-prod-debian-10
+FROM public.ecr.aws/docker/library/node:22-slim
 
 WORKDIR /app
 

packages/amplify-container-hosting/resources/simple-template/Dockerfile

@@ -1,12 +1,12 @@
 # Build the App using node
-FROM public.ecr.aws/bitnami/node:14-prod-debian-10 AS builder
+FROM public.ecr.aws/docker/library/node:22-slim AS builder
 WORKDIR /app
 COPY . .
 RUN yarn install && yarn build
 
 # Host the App using nginx
 EXPOSE 80
-FROM public.ecr.aws/nginx/nginx:1
+FROM public.ecr.aws/nginx/nginx:stable
 WORKDIR /usr/share/nginx/html
 RUN rm -rf ./*
 COPY --from=builder /app/build .