Use recommended --omit=dev flag in runtime's npm ci

Dockerfile

@@ -9,7 +9,7 @@ WORKDIR /app
 ENV NODE_ENV production
 USER node
 COPY package*.json ./
-RUN npm ci --production
-COPY --from=build --chown=node:node /app/dist ./dist
+RUN npm ci --omit=dev
+COPY --from=build /app/dist ./dist
 EXPOSE 3000
 CMD ["node", "./dist/index.js"]