fs: check closing_ in FileHandle::Close

Fix possible flaky failure. Keep uv_fs_close from being called twice
on the same fd.

Refs: #39464
Signed-off-by: James M Snell <jasnell@gmail.com>

src/node_file.cc

@@ -237,7 +237,7 @@ BaseObjectPtr<BaseObject> FileHandle::TransferData::Deserialize(
 // JS during GC. If closing the fd fails at this point, a fatal exception
 // will crash the process immediately.
 inline void FileHandle::Close() {
-  if (closed_) return;
+  if (closed_ || closing_) return;
   uv_fs_t req;
   int ret = uv_fs_close(env()->event_loop(), &req, fd_, nullptr);
   uv_fs_req_cleanup(&req);