docs: fix mirror site (#3617)

Author: vagetablechicken

README.md

@@ -83,7 +83,7 @@ In order to achieve the goal of Development as Deployment, OpenMLDB is designed
 
 ## 5. Download and Install
 
-- Download: [GitHub release](https://github.com/4paradigm/OpenMLDB/releases), [mirror site (China)](http://43.138.115.238/download/)
+- Download: [GitHub release](https://github.com/4paradigm/OpenMLDB/releases), [mirror site (China)](https://www.openmldb.com/download/)
 - Install and deploy: [English](https://openmldb.ai/docs/en/main/deploy/install_deploy.html), [Chinese](https://openmldb.ai/docs/zh/main/deploy/install_deploy.html)
 
 ## 6. QuickStart

README_cn.md

@@ -80,7 +80,7 @@ OpenMLDB 的整体架构设计是为了达到特征平台从开发到部署的
 
 ## 5. 下载和安装
 
-- 下载：[GitHub 发布页面](https://github.com/4paradigm/OpenMLDB/releases)，[镜像网站（中国）](http://43.138.115.238/download/)
+- 下载：[GitHub 发布页面](https://github.com/4paradigm/OpenMLDB/releases)，[镜像网站（中国）](https://www.openmldb.com/download/)
 - [安装和部署文档](https://openmldb.ai/docs/zh/main/deploy/install_deploy.html)
 
 ## 6. QuickStart

docs/en/deploy/install_deploy.md

@@ -41,7 +41,7 @@ Regarding hardware requirements:
 If your operating system is capable of running pre-compiled packages directly, you can download them from the following sources:
 
 - GitHub Release: https://github.com/4paradigm/OpenMLDB/releases
-- Mirror Site (China): http://43.138.115.238/download/
+- Mirror Site (China): https://www.openmldb.com/download/
 
 The compatible operating systems are as follows:
 
@@ -608,7 +608,7 @@ Spark distribution：
 
 ```shell
 wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.4/spark-3.2.1-bin-openmldbspark.tgz
-# Image address (China)：http://43.138.115.238/download/v0.8.4/spark-3.2.1-bin-openmldbspark.tgz
+# Image address (China)：https://www.openmldb.com/download/v0.8.4/spark-3.2.1-bin-openmldbspark.tgz
 tar -zxvf spark-3.2.1-bin-openmldbspark.tgz 
 export SPARK_HOME=`pwd`/spark-3.2.1-bin-openmldbspark/
 ```

docs/zh/deploy/install_deploy.md

@@ -36,7 +36,7 @@ strings /lib64/libc.so.6 | grep ^GLIBC_
 如果你的操作系统可以直接运行预编译包，则可以从以下地址下载：
 
 - GitHub release 页面：https://github.com/4paradigm/OpenMLDB/releases
-- 镜像站点（中国）：http://43.138.115.238/download/
+- 镜像站点（中国）：https://www.openmldb.com/download/
 
 其中预编译包和可支持的操作系统的对应关系为：
 
@@ -564,7 +564,7 @@ TaskManager 可以只存在一台，如果你需要高可用性，可以部署
 Spark发行版：
 ```shell
 wget https://github.com/4paradigm/spark/releases/download/v3.2.1-openmldb0.8.4/spark-3.2.1-bin-openmldbspark.tgz
-# 中国镜像地址：http://43.138.115.238/download/v0.8.4/spark-3.2.1-bin-openmldbspark.tgz
+# 中国镜像地址：https://www.openmldb.com/download/v0.8.4/spark-3.2.1-bin-openmldbspark.tgz
 tar -zxvf spark-3.2.1-bin-openmldbspark.tgz 
 export SPARK_HOME=`pwd`/spark-3.2.1-bin-openmldbspark/
 ```