fix(treespec): fix gc for self-referential case by implementing `tp_traverse` #1165

	name: Lint

	on:
	push:
	branches:
	- main
	pull_request:
	# Allow to trigger the workflow manually
	workflow_dispatch:

	permissions:
	contents: read

	concurrency:
	group: "${{ github.workflow }}-${{ github.ref }}"
	cancel-in-progress: ${{ github.event_name == 'pull_request' }}

	env:
	OPTREE_CXX_WERROR: "ON"

	jobs:
	lint:
	runs-on: ubuntu-latest
	timeout-minutes: 30
	steps:
	- name: Checkout
	uses: actions/checkout@v4
	with:
	submodules: "recursive"
	fetch-depth: 1

	- name: Set up Python 3.12
	uses: actions/setup-python@v5
	with:
	python-version: "3.12"
	update-environment: true

	- name: Upgrade pip
	run: \|
	python -m pip install --upgrade pip setuptools wheel pybind11

	- name: Install dependencies
	run: \|
	python -m pip install -r docs/requirements.txt

	- name: Install OpTree
	run: \|
	python -m pip install -vvv --no-build-isolation --editable '.[lint,benchmark]'

	- name: pre-commit
	run: \|
	make pre-commit

	- name: ruff
	run: \|
	make ruff

	- name: flake8
	run: \|
	make flake8

	- name: pylint
	run: \|
	make pylint

	- name: isort and black
	run: \|
	make py-format

	- name: cpplint
	run: \|
	make cpplint

	- name: clang-format
	run: \|
	make clang-format

	- name: clang-tidy
	run: \|
	make clang-tidy

	- name: addlicense
	run: \|
	make addlicense

	- name: mypy
	run: \|
	make mypy

	- name: doctest
	run: \|
	make doctest

	- name: docstyle
	run: \|
	make docstyle

	- name: spelling
	run: \|
	make spelling

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