chore(tvix/castore/fuse): update fuse-backend-rs

This release includes support for overlay filesystems

Change-Id: I946cbf346df045209afaea2d720bb57fc2f2659f
Reviewed-on: https://cl.tvl.fyi/c/depot/+/12538
Reviewed-by: flokli <flokli@flokli.de>
Autosubmit: yuka <yuka@yuka.dev>
Tested-by: BuildkiteCI

tvix/castore/src/fs/mod.rs

@@ -644,6 +644,7 @@ where
     ) -> io::Result<(
         Option<Self::Handle>,
         fuse_backend_rs::api::filesystem::OpenOptions,
+        Option<u32>,
     )> {
         if inode == ROOT_ID {
             return Err(io::Error::from_raw_os_error(libc::ENOSYS));
@@ -687,6 +688,7 @@ where
                         Ok((
                             Some(fh),
                             fuse_backend_rs::api::filesystem::OpenOptions::empty(),
+                            None,
                         ))
                     }
                 }