message: Fix error code for path_rename of a non-existant file
  Fixes
diff: @@ -2073,7 +2073,7 @@ pub fn path_rename(
  let source_entry = match &mut state.fs.inodes[source_parent_inode].kind {
  Kind::Dir { entries, .. } => {
  - wasi_try!(entries.remove(&source_entry_name), __WASI_EINVAL)
  + wasi_try!(entries.remove(&source_entry_name), __WASI_ENOENT)
  }
  Kind::Root { .. } => return __WASI_ENOTCAPABLE,
  Kind::Symlink { .. } | Kind::File { .. } | Kind::Buffer { .. } => {
  