docs: fix broken links of grafana plugin for2.6 (#13513)

* docs: fix dashboard id

* docs: fix broken links of grafana plugin

docs-cn/20-third-party/01-grafana.mdx

@@ -26,7 +26,7 @@ grafana-cli plugins install tdengine-datasource
 sudo -u grafana grafana-cli plugins install tdengine-datasource
 ```
 
-或者从 [GitHub](https://github.com/taosdata/grafanaplugin/releases/tag/latest) 或 [Grafana](https://grafana.com/grafana/plugins/tdengine-datasource/?tab=installation) 下载 .zip 文件到本地并解压到 Grafana 插件目录。命令行下载示例如下：
+或者从 [GitHub](https://github.com/taosdata/grafanaplugin/tags) 或 [Grafana](https://grafana.com/grafana/plugins/tdengine-datasource/?tab=installation) 下载 .zip 文件到本地并解压到 Grafana 插件目录。命令行下载示例如下：
 
 ```bash
 GF_VERSION=3.2.2

docs-en/20-third-party/01-grafana.mdx

@@ -28,7 +28,7 @@ grafana-cli plugins install tdengine-datasource
 sudo -u grafana grafana-cli plugins install tdengine-datasource
 ```
 
-Alternatively, you can manually download the .zip file from [GitHub](https://github.com/taosdata/grafanaplugin/releases/tag/latest) or [Grafana](https://grafana.com/grafana/plugins/tdengine-datasource/?tab=installation) and unpack it into your grafana plugins directory.
+Alternatively, you can manually download the .zip file from [GitHub](https://github.com/taosdata/grafanaplugin/tags) or [Grafana](https://grafana.com/grafana/plugins/tdengine-datasource/?tab=installation) and unpack it into your grafana plugins directory.
 
 ```bash
 GF_VERSION=3.2.2