refactor: Add from_py_object to PlayerCount pyclass

Author: Apricot-S

src/config.rs

@@ -12,7 +12,7 @@ use pyo3::prelude::*;
 ///
 ///         - Tiles from 2m (二萬) to 8m (八萬) are not used.
 ///
-#[pyclass(eq, eq_int, rename_all = "UPPERCASE")]
+#[pyclass(from_py_object, eq, eq_int, rename_all = "UPPERCASE")]
 #[derive(Clone, PartialEq)]
 pub(crate) enum PlayerCount {
     Four,