File object store should write to a temp file and rename it later

[evenyag]

What type of enhancement is this?

API improvement

What does the enhancement do?

File object store should write to a temp file and rename it later, ensuring the file object is complete.

Implementation challenges

We need to implement a new Backend or an adapter for fs::Backend

[killme2008]

There is already an issue in opendal https://github.com/datafuselabs/opendal/issues/788

[killme2008]

Already implemented in https://github.com/datafuselabs/opendal/pull/991

Waiting for opendal to release a new version.