Fix constraint violation checking for GranularMarking in v21. #335

	# For more information see: https://help.github.com/actions/language-and-framework-guides/using-python-with-github-actions

	name: cti-python-stix2 test harness
	on: [push, pull_request]

	jobs:
	build:

	runs-on: ubuntu-latest
	strategy:
	matrix:
	python-version: [3.8, 3.9, '3.10', '3.11', '3.12']

	name: Python ${{ matrix.python-version }} Build
	steps:
	- uses: actions/checkout@v2
	- name: Set up Python ${{ matrix.python-version }}
	uses: actions/setup-python@v2
	with:
	python-version: ${{ matrix.python-version }}
	- name: Install and update essential dependencies
	run: \|
	pip install -U pip setuptools
	pip install tox-gh-actions
	pip install codecov
	- name: Test with Tox
	run: \|
	tox
	- name: Upload coverage information to Codecov
	uses: codecov/[email protected]
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	fail_ci_if_error: false # optional (default = false)
	verbose: true # optional (default = false)

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