py-check.mk: Run isort with "make format"

If /usr/bin/isort is found, run it during "make format" to get a
defined way the imports are sorted. tool.isort in pyproject.toml is
updated to match the other fixers.

Commit the fallout of this change. Running the other fixers alone
doesn't change the formatting, so this should be safe.

Signed-off-by: Jan Lindemann <jan@janware.com>

src/python/jw/pkg/lib/ec/Curl.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import Any, override, TYPE_CHECKING
+from typing import TYPE_CHECKING, Any, override
 
 from ..FileContext import FileContext as Base
 

src/python/jw/pkg/lib/ec/ssh/Exec.py

@@ -2,7 +2,7 @@ from __future__ import annotations
 
 import os
 
-from typing import Any, override, TYPE_CHECKING
+from typing import TYPE_CHECKING, Any, override
 
 from ...base import InputMode
 from ...util import run_cmd

src/python/jw/pkg/lib/ec/ssh/Paramiko.py

@@ -1,6 +1,6 @@
 from __future__ import annotations
 
-from typing import Any, override, TYPE_CHECKING
+from typing import TYPE_CHECKING, Any, override
 
 # Tolerate missing paramiko imports. jw-pkg is designed to work with what it
 # finds.