Fix Submodule.head_id if submodule isn't in superproject HEAD tree #54

	name: Lints

	on:
	pull_request:
	push:
	paths-ignore:
	- '**.rst'

	jobs:
	ruff:
	runs-on: ubuntu-22.04

	steps:
	- name: Checkout pygit2
	uses: actions/checkout@v4

	- name: Set up Python
	uses: actions/setup-python@v5
	with:
	python-version: '3.12'

	- name: Install ruff
	run: pip install ruff

	- name: Check code style with ruff
	run: ruff format --diff

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