[ObjectStore] MultipartUpload::complete fails on WSL when writing to /mnt/

**Describe the bug**
Using LocalFileSystem on WSL + BufWriter I get the following error:
`file.metadata()` fails after `std::fs::rename` with FileNotFound but is reported as an aborted upload

**To Reproduce**
Use `object_store::buffered::BufWriter` to write a big enough file to the windows filesystem when running though WSL.

**Expected behavior**
File write succeeds.

**Additional context**
Using object_store-0.11.0.
Our services are actually writing to S3, but the local dev environment writes to the local filesystem. I could not reproduce the bug when writing to the linux filesystem, but it happens every time I write a 50MB+ file to the windows file system with the exe running on the linux side.

Start at the LocalFileSystem multipart upload completion path used by object_store::buffered::BufWriter, focusing on the std::fs::rename followed by file.metadata() behavior on WSL /mnt paths. Reproduce with a file larger than 50 MB, then verify that completion succeeds and the file can be written to the Windows filesystem without being reported as an aborted upload.

Written by the indexing model from the issue text.