Update symfony/http-foundation requirement from ^4.4 || ^5.3 || ^6.0 … #89

	name: Unit tests

	on:
	pull_request:
	push:

	defaults:
	run:
	shell: bash

	jobs:
	tests:
	name: Unit tests
	runs-on: ubuntu-latest

	strategy:
	matrix:
	include:
	- php: '7.4'
	mode: low-deps
	- php: '7.4'
	- php: '8.0'
	mode: low-deps
	- php: '8.0'
	fail-fast: false

	steps:
	- name: Checkout
	uses: actions/checkout@v2
	with:
	fetch-depth: 2

	- name: Setup PHP
	uses: shivammathur/setup-php@v2
	with:
	coverage: none
	extensions: "intl, bcmath"
	php-version: "${{ matrix.php }}"

	- name: Validate composer.json and composer.lock
	run: composer validate --strict --no-check-lock

	- name: Install dependencies
	run: \|
	composer update --prefer-dist --no-progress $([ '${{ matrix.mode }}' = low-deps ] && echo '--prefer-lowest')

	- name: Run phpspec
	run: \|
	php vendor/bin/phpspec run

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