Update Dockerfile

Dockerfile

@@ -49,7 +49,7 @@ COPY . .
 RUN pnpm install
 
 # 批准构建脚本并选择所有需要的构建脚本
-RUN printf ' \x20 \x20 \x20 \n y\n' | pnpm approve-builds
+RUN (sleep 1; echo ' '; sleep 1; echo ' '; sleep 1; echo ' '; sleep 1; echo 'y') | pnpm approve-builds opencv-build opencv4nodejs sharp
 
 # 编译 opencv4nodejs
 RUN pnpm rebuild opencv4nodejs