[FIX] No failure when creation date is not null and other improvements to `_check_derived_image_xml` #1751

	name: Lint

	on:
	push:
	branches: [ dev ]
	pull_request:
	branches: [ dev ]

	permissions:
	contents: read

	env:
	DEFAULT_PYTHON_VERSION: '3.10'

	jobs:
	lint:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: snok/install-poetry@v1
	- uses: actions/setup-python@v4
	with:
	python-version: ${{ env.DEFAULT_PYTHON_VERSION }}
	cache: poetry
	- name: Lint code
	run: make lint

	spellcheck:
	runs-on: ubuntu-latest
	steps:
	- uses: actions/checkout@v3
	- uses: snok/install-poetry@v1
	- uses: actions/setup-python@v4
	with:
	python-version: ${{ env.DEFAULT_PYTHON_VERSION }}
	cache: poetry
	- name: Check spelling
	run: make spellcheck

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