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Bump actions/cache from 5 to 6 #19

	---
	name: "linting - all"
	on:
	pull_request:
	push:
	branches:
	- "main"
	jobs:
	lint:
	name: "linting (python)"
	runs-on: "ubuntu-latest"
	steps:
	- name: "Check out repository"
	uses: "actions/checkout@v6"
	- name: "Set up Python"
	uses: "actions/setup-python@v6"
	with:
	python-version: "3.12"
	- name: "install linting tooling"
	continue-on-error: true
	run: \|
	python -m pip install --upgrade pip
	pip install tox
	python -m pip install -r requirements/local.txt
	- name: "run linting via tox"
	run: \|
	python -m tox -e linting