Add dependabot configuration file #582

	name: "Testing"

	on:
	- push
	- pull_request

	jobs:
	run:
	name: "CI"
	runs-on: ${{ matrix.operating-system }}
	strategy:
	fail-fast: false
	matrix:
	operating-system: [ubuntu-latest, windows-latest]
	php-versions: ["8.0", "8.1", "8.2", "8.3"]

	steps:
	- name: Set git to use LF
	run: \|
	git config --global core.autocrlf false
	git config --global core.eol lf

	- name: Checkout
	uses: actions/checkout@v3

	- name: Install PHP
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php-versions }}
	coverage: pcov
	extensions: intl, calendar

	- name: Get Composer Cache Directory
	id: composer-cache
	run: echo "::set-output name=dir::$(composer config cache-files-dir)"

	- name: Cache Composer dependencies
	uses: actions/cache@v3
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
	restore-keys: ${{ runner.os }}-composer-

	- name: Check Composer configuration
	run: composer validate --strict

	- name: Install dependencies
	run: composer install --no-progress --prefer-dist --optimize-autoloader

	- name: Run unit tests
	run: vendor/bin/phpunit --coverage-clover=build/logs/clover.xml

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