fix 缺少 mac x64 下载链接

Author: ityuany

crates/snm_test_utils/src/lib.rs

@@ -139,6 +139,13 @@ impl SnmTestContext {
           current.join("src/fixtures/node/v20.0.0/node-v20.0.0-darwin-arm64.tar.xz"),
         ),
       },
+      SnmMockServerArg {
+        path: "/v20.0.0/node-v20.0.0-darwin-x64.tar.xz".to_string(),
+        mime: "application/octet-stream".to_string(),
+        resp: ResponseSource::File(
+          current.join("src/fixtures/node/v20.0.0/node-v20.0.0-darwin-x64.tar.xz"),
+        ),
+      },
       SnmMockServerArg {
         path: "/v20.0.0/node-v20.0.0-linux-x64.tar.xz".to_string(),
         mime: "application/octet-stream".to_string(),