Remove unnecessary Dockerfile steps

Dockerfile

@@ -42,10 +42,7 @@ RUN set -x \
     && apk add --no-cache curl \
     && yarn add npm-run-all dotenv semver prisma@6.1.0
 
-# You only need to copy next.config.js if you are NOT using the default configuration
-COPY --from=builder /app/next.config.js .
 COPY --from=builder --chown=nextjs:nodejs /app/public ./public
-COPY --from=builder /app/package.json ./package.json
 COPY --from=builder /app/prisma ./prisma
 COPY --from=builder /app/scripts ./scripts