Revert _Array & its #type: ignore

Author: JamesParrott

src/shapefile.py

@@ -394,7 +394,7 @@ class GeoJSONFeatureCollectionWithBBox(GeoJSONFeatureCollection):
 ARR_TYPE = TypeVar("ARR_TYPE", int, float)
 
 
-class _Array(array.array[ARR_TYPE]):
+class _Array(array.array, Generic[ARR_TYPE]):  # type: ignore[type-arg]
     """Converts python tuples to lists of the appropriate type.
     Used to unpack different shapefile header parts."""