pre-commit: Fix py38 support

Author: jorisv

bindings/python/pinocchio/shortcuts.py

@@ -5,6 +5,9 @@
 
 ## In this file, some shortcuts are provided ##
 
+# TODO: Remove when 20.04 is not supported
+from __future__ import annotations
+
 from . import WITH_HPP_FCL, WITH_HPP_FCL_BINDINGS
 from . import pinocchio_pywrap_default as pin
 

bindings/python/pinocchio/visualize/meshcat_visualizer.py

@@ -1,3 +1,6 @@
+# TODO: Remove when 20.04 is not supported
+from __future__ import annotations
+
 import warnings
 from pathlib import Path
 from typing import ClassVar