build: min php version is 8.0.2

Author: Gemorroj

.github/workflows/ci.yml

@@ -10,15 +10,6 @@ jobs:
       fail-fast: false
       matrix:
         include:
-          - operating-system: 'ubuntu-latest'
-            php-version: '7.4'
-            job-description: 'Ubuntu; PHP 7.4; latest-deps'
-
-          - operating-system: 'ubuntu-latest'
-            php-version: '7.4'
-            composer-flags: '--prefer-lowest'
-            job-description: 'Ubuntu; PHP 7.4; lowest-deps'
-
           - operating-system: 'ubuntu-latest'
             php-version: '8.0'
             job-description: 'Ubuntu; PHP 8.0; latest-deps'

.php-cs-fixer.dist.php

@@ -7,7 +7,7 @@
 return (new PhpCsFixer\Config())
     ->setRules([
         '@Symfony' => true,
-        '@PHP74Migration' => true,
+        '@PHP80Migration' => true,
 
         'combine_consecutive_issets' => true,
         'combine_consecutive_unsets' => true,

README.md

@@ -8,7 +8,7 @@
 
 ### Requirements:
 
-- PHP >= 7.4
+- PHP >= 8.0.2
 
 ### Installation:
 ```bash

composer.json

@@ -4,16 +4,16 @@
     "description": "W3C HTML Validator service.",
     "license": "LGPL-3.0-or-later",
     "require": {
-        "php": ">=7.4",
-        "symfony/http-client": "^4.4.11||^5.0||^6.0"
+        "php": ">=8.0.2",
+        "symfony/http-client": "^5.4||^6.0"
     },
     "authors": [
         {
             "name": "Gemorroj"
         }
     ],
     "require-dev": {
-        "phpunit/phpunit": "^9.5.16",
+        "phpunit/phpunit": "^9.6",
         "friendsofphp/php-cs-fixer": "^3.0"
     },
     "autoload": {