Include win_utf8_io.c when building module for Windows. #4

	name: style

	on:
	pull_request:
	push:
	branches:
	- main

	jobs:
	style:
	runs-on: ubuntu-24.04

	steps:
	- uses: actions/checkout@v4

	- uses: actions/setup-python@v5
	with:
	python-version: "3.12"

	- name: Install dependencies
	run: pip install pycodestyle

	- name: Check Python formatting
	run: python -m pycodestyle .

	- name: Check general formatting
	run: \|
	git config --local core.whitespace tab-in-indent
	git diff --check $(git hash-object -t tree /dev/null)

	if git grep -q -I -E '.{80}'; then
	echo "Lines exceeding 79 characters:"
	git grep -I -E '.{80}'
	exit 1
	fi

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