Add baseline GitHub Actions checks #1

	name: Composer Security Audit

	on:
	push:
	branches:
	- main
	pull_request:
	schedule:
	- cron: '0 6 * * 1'
	workflow_dispatch:

	concurrency:
	group: ${{ github.workflow }}-${{ github.ref }}
	cancel-in-progress: true

	jobs:
	security:
	name: Composer audit
	runs-on: ubuntu-latest
	steps:
	- name: Checkout
	uses: actions/checkout@v4

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: '8.3'
	coverage: none

	- name: Validate Composer file
	run: composer validate --no-check-publish --strict

	- name: Run Composer audit
	run: composer audit --locked

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