chore: migrate from npm to pnpm

Dockerfile

@@ -1,6 +1,7 @@
 FROM node:22-alpine
+RUN corepack enable && corepack prepare pnpm@11.1.1 --activate
 WORKDIR /app
-COPY package*.json ./
-RUN npm install
+COPY package.json pnpm-lock.yaml ./
+RUN pnpm install --frozen-lockfile
 COPY . .
 CMD ["node", "server.js"]

package.json

@@ -2,6 +2,7 @@
   "name": "store-scraper",
   "type": "module",
   "version": "1.0.0",
+  "packageManager": "pnpm@11.1.1",
   "description": "Host [google-play-scraper](https://github.com/facundoolano/google-play-scraper) and [app-store-scraper](https://github.com/facundoolano/app-store-scraper)",
   "main": "index.js",
   "scripts": {