Add support for gulf standard time #281

	name: Tests

	on: [push]

	jobs:
	phpunit:
	strategy:
	matrix:
	operating-system: [ubuntu-latest]
	php-versions: ['7.4', '8.0', '8.1']

	runs-on: ${{ matrix.operating-system }}

	steps:
	- name: Checkout
	uses: actions/checkout@v2

	- name: Setup PHP, with composer and extensions
	uses: shivammathur/setup-php@v2
	with:
	php-version: ${{ matrix.php-versions }}
	extensions: mbstring
	coverage: pcov

	- 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@v2
	with:
	path: ${{ steps.composer-cache.outputs.dir }}
	# Use composer.json for key, if composer.lock is not committed.
	# key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.json') }}
	key: ${{ runner.os }}-composer-${{ hashFiles('**/composer.lock') }}
	restore-keys: ${{ runner.os }}-composer-

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

	- name: Code Analysis (PHP CS-Fixer)
	if: matrix.code-analysis == 'yes'
	run: php vendor/bin/php-cs-fixer fix --dry-run --diff

	- name: Code Analysis (PHPStan)
	if: matrix.code-analysis == 'yes'
	run: composer phpstan

	- name: Test with phpunit
	run: vendor/bin/phpunit --configuration ./tests/phpunit.xml --coverage-text --coverage-clover=coverage.xml

	- name: Upload coverage to Codecov
	uses: codecov/codecov-action@v2
	with:
	token: ${{ secrets.CODECOV_TOKEN }}
	file: ./coverage.xml
	flags: tests
	name: codecov-umbrella
	fail_ci_if_error: true

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