tools: update download link for sync-diff-inspector (#3905)

* tools: update download link for sync-diff-inspector

* Update sync-diff-inspector/sync-diff-inspector-overview.md

Co-authored-by: Keke Yi <40977455+yikeke@users.noreply.github.com>

Co-authored-by: Keke Yi <40977455+yikeke@users.noreply.github.com>

sync-diff-inspector/sync-diff-inspector-overview.md

@@ -8,7 +8,7 @@ aliases: ['/docs/dev/sync-diff-inspector/sync-diff-inspector-overview/','/docs/d
 
 [sync-diff-inspector](https://github.com/pingcap/tidb-tools/tree/master/sync_diff_inspector) is a tool used to compare data stored in the databases with the MySQL protocol. For example, it can compare the data in MySQL with that in TiDB, the data in MySQL with that in MySQL, or the data in TiDB with that in TiDB. In addition, you can also use this tool to repair data in the scenario where a small amount of data is inconsistent.
 
-This guide introduces the key features of sync-diff-inspector and describes how to configure and use this tool. You can download it at [tidb-enterprise-tools-latest-linux-amd64](https://download.pingcap.org/tidb-enterprise-tools-latest-linux-amd64.tar.gz).
+This guide introduces the key features of sync-diff-inspector and describes how to configure and use this tool. You can download it at [tidb-enterprise-tools-nightly-linux-amd64](https://download.pingcap.org/tidb-enterprise-tools-nightly-linux-amd64.tar.gz).
 
 ## Key features