[skip ci] update Dockerfile

Author: tom2drum

Dockerfile

@@ -89,6 +89,10 @@ WORKDIR /app
 RUN addgroup --system --gid 1001 nodejs
 RUN adduser --system --uid 1001 nextjs
 
+# Set the correct permission for prerender cache
+RUN mkdir .next
+RUN chown nextjs:nodejs .next
+
 COPY --from=builder /app/next.config.js ./
 COPY --from=builder /app/public ./public
 COPY --from=builder /app/package.json ./package.json