Drop Python 3.8 from Mypy tests.

Newer versions of NumPy don't support type-hints for this version.

Author: HexDecimal

pyproject.toml

@@ -107,7 +107,7 @@ filterwarnings = [
 
 [tool.mypy]
 files = ["."]
-python_version = 3.8
+python_version = 3.9
 warn_unused_configs = true
 show_error_codes = true
 disallow_subclassing_any = true

tcod/path.py

@@ -330,7 +330,7 @@ def _export(array: NDArray[Any]) -> Any:
     return ffi.new("struct NArray*", _export_dict(array))
 
 
-def _compile_cost_edges(edge_map: Any) -> tuple[Any, int]:
+def _compile_cost_edges(edge_map: ArrayLike) -> tuple[NDArray[np.intc], int]:
     """Return an edge_cost array using an integer map."""
     edge_map = np.array(edge_map, copy=True)
     if edge_map.ndim != 2: