Update minimum python to 3.11 from 3.10

3.10 is failing in CI and I cant be arsed to figure out why. It's anyway
a few months from EOL

kittens/panel/main.py

@@ -6,7 +6,8 @@ import sys
 from contextlib import suppress
 from functools import partial
 from types import MappingProxyType
-from typing import Any, Iterable, Mapping, Sequence
+from typing import Any
+from collections.abc import Iterable, Mapping, Sequence
 
 from kitty.cli import parse_args
 from kitty.cli_stub import PanelCLIOptions