[browser][io] Emscripten Error being overridden incorrectly on FS.Rename

While renaming a file and if one of the parent paths do not exist the error code is being overwritten to EBUSY instead of reporting the actual error:

```
Error no 44 Error: ENOENT Message: No such file or directory 

```

Reported error:  https://github.com/emscripten-core/emscripten/issues/11804