fix(tools): Skip checksum verification in docker script download

harmony_tools/src/docker.rs

@@ -153,7 +153,7 @@ impl Docker {
                 format!("Failed to parse installation script URL: {}", e)
             })?,
             file_name: script_name.to_string(),
-            checksum: Some(String::new()), // Skip checksum verification for official scripts
+            checksum: None,
         };
 
         let downloaded_script = asset