fix(docker): 优化Alpine镜像源配置及时区设置

- 移除阿里云镜像源配置，改用默认镜像源进行apk更新
- 保持时区数据安装和上海时区设置不变
- 简化Dockerfile相关命令，提升构建效率

manifest/docker/Dockerfile

@@ -21,9 +21,7 @@ COPY --from=builder /build/resource/public/ /app/resource/public/
 COPY --from=builder /build/manifest/config/ /app/manifest/config/
 
 #设置国内镜像源，时区
-RUN echo "https://mirrors.aliyun.com/alpine/v3.18/main/" > /etc/apk/repositories && \
-    echo "https://mirrors.aliyun.com/alpine/v3.18/community/" >> /etc/apk/repositories && \
-    apk update && \
+RUN apk update && \
     apk upgrade && \
     apk add --no-cache tzdata && \
     cp /usr/share/zoneinfo/Asia/Shanghai /etc/localtime && \