build: use node 20 and npm ci

Dockerfile

@@ -1,8 +1,9 @@
 # Build stage
-FROM node:18-alpine as build-stage
+FROM node:20-alpine as build-stage
 WORKDIR /app
 COPY package*.json ./
-RUN npm install
+# Используем npm ci для надежной установки зависимостей из package-lock.json
+RUN npm ci
 COPY . .
 RUN npm run build