update node.js version in Dockerfile

Dockerfile

@@ -1,5 +1,5 @@
 # Stage 1 - Create yarn install skeleton layer
-FROM node:18-bookworm-slim AS packages
+FROM node:20.18.1 AS packages
 
 WORKDIR /app
 COPY package.json yarn.lock ./
@@ -12,7 +12,7 @@ COPY plugins plugins
 RUN find packages \! -name "package.json" -mindepth 2 -maxdepth 2 -exec rm -rf {} \+
 
 # Stage 2 - Install dependencies and build packages
-FROM node:18-bookworm-slim AS build
+FROM node:20.18.1  AS build
 
 # Required for macOS
 RUN apt update -y
@@ -24,10 +24,7 @@ WORKDIR /app
 COPY --from=packages --chown=node:node /app .
 
 RUN --mount=type=cache,target=/home/node/.cache/yarn,sharing=locked,uid=1000,gid=1000 \
-    yarn install --ignore-engines --network-timeout 600000
-
-#--ignore-engines  
-#yarn install --frozen-lockfile --network-timeout 600000  
+    yarn install --network-timeout 600000
 
 COPY --chown=node:node . .
 
@@ -41,7 +38,7 @@ RUN mkdir packages/backend/dist/skeleton packages/backend/dist/bundle \
     && tar xzf packages/backend/dist/bundle.tar.gz -C packages/backend/dist/bundle
 
 # Stage 3 - Build the actual backend image and install production dependencies
-FROM node:18-bookworm-slim
+FROM node:20.18.1 
 
 # Install isolate-vm dependencies, these are needed by the @backstage/plugin-scaffolder-backend.
 # Install packages needed to get utility binaries
@@ -86,9 +83,7 @@ WORKDIR /app
 COPY --from=build --chown=node:node /app/yarn.lock /app/package.json /app/packages/backend/dist/skeleton/ ./
 
 RUN --mount=type=cache,target=/home/node/.cache/yarn,sharing=locked,uid=1000,gid=1000 \
-    yarn install --ignore-engines --production --network-timeout 600000
-
-#yarn install --frozen-lockfile --production --network-timeout 600000    
+    yarn install --production --network-timeout 600000
 
 # Copy the built packages from the build stage
 COPY --from=build --chown=node:node /app/packages/backend/dist/bundle/ ./