build: 📌 pin node version in dockerfile

Signed-off-by: Eric Nemchik <[email protected]>

Dockerfile

@@ -1,4 +1,4 @@
-FROM node:alpine
+FROM node:20-alpine
 COPY ./src ./package.json package-lock.json /tsconfig.json /bot/
 WORKDIR /bot
 RUN npm install && npm run build && npm ci --omit=dev