Add validate action #2

	name: Validate

	on: [push]

	jobs:
	test:
	name: Validate
	runs-on: ubuntu-latest

	steps:
	- uses: actions/checkout@v4
	with:
	submodules: true

	- uses: actions/setup-python@v5
	with:
	python-version: '3.9'

	- name: setup ruff
	run: pip install mysoc-validator==0.9.3

	- name: Check and format
	run: \|
	python -m mysoc_validator popolo validate members/people.json --format

	- name: Check format hasn't changed anything
	run: \|
	if [[ -n $(git status --porcelain) ]]; then
	echo "Uncommitted changes detected:"
	git status --porcelain
	exit 1
	else
	echo "No file changes detected."
	fi

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