[geojson] Change geometry.DEFAULT_PRECISION type from Literal[6] to SupportsIndex

stubs/geojson/geojson/geometry.pyi

@@ -1,13 +1,13 @@
 from collections.abc import Sequence
 from decimal import Decimal
-from typing import Literal, TypeAlias
+from typing import SupportsIndex, TypeAlias
 
 from geojson.base import GeoJSON
 
 _InputCoord: TypeAlias = float | Decimal | Geometry | Sequence[_InputCoord]
 _CleanCoord: TypeAlias = float | Decimal | list[_CleanCoord]
 
-DEFAULT_PRECISION: Literal[6]
+DEFAULT_PRECISION: SupportsIndex  # same type as ndigits parameter of builtins.round
 
 class Geometry(GeoJSON):
     def __init__(