fix(config): reject case-insensitive key collisions #621

	name: PHPUnit

	# If a pull-request is pushed then cancel all previously running jobs related
	# to that pull-request
	concurrency:
	group: ${{ github.workflow }}-${{ github.event.pull_request.number \|\| github.sha }}
	cancel-in-progress: true

	on:
	# push:
	pull_request:
	types: [opened, synchronize, reopened]
	branches:
	- develop

	permissions:
	contents: read

	jobs:
	phpunit:
	runs-on: ubuntu-latest
	strategy:
	matrix:
	php-version: ["8.2", "8.3", "8.4", "8.5"]
	steps:
	- name: Checkout code
	uses: actions/checkout@v6

	- name: Set up PHP ${{ matrix.php-version }}
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php-version }}

	- name: Install Composer dependencies
	uses: ramsey/composer-install@v4

	- name: Create main config.php for unit tests
	run: cp config/config.dist.php config/config.php

	- name: Unit Tests
	run: \|
	set -o pipefail
	composer phpunit \| tee phpunit.log
	if ! grep -qE "Tests:\|OK \(" phpunit.log; then
	echo "❌ PHPUnit exited early (no summary line found)"
	exit 1
	fi

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