chore: use oven/bun as base image for Dockerfile, copy bun.lock in image build step

Dockerfile

@@ -1,7 +1,7 @@
 # To use this Dockerfile, you have to set `output: 'standalone'` in your next.config.js file.
 # From https://github.com/vercel/next.js/blob/canary/examples/with-docker/Dockerfile
 
-FROM node:22.17.0-alpine AS base
+FROM oven/bun:1-alpine AS base
 
 # Install dependencies only when needed
 FROM base AS deps
@@ -10,7 +10,7 @@ RUN apk add --no-cache libc6-compat
 WORKDIR /app
 
 # Install dependencies based on the preferred package manager
-COPY package.json yarn.lock* package-lock.json* pnpm-lock.yaml* ./
+COPY package.json yarn.lock* package-lock.json* pnpm-lock.yaml* bun.lock* ./
 RUN \
   if [ -f yarn.lock ]; then yarn --frozen-lockfile; \
   elif [ -f package-lock.json ]; then npm ci; \